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212112311230320 = 24356156114356513
BaseRepresentation
bin110000001110101000111110…
…111101101001111101110000
31000211000201221200002210200220
4300032220332331221331300
5210300222003133332240
62031043014531013040
762451415544124354
oct6016507675517560
91024021850083626
10212112311230320
1161649364a29866
121b958953a3a180
139148149c53367
143a5440d739464
15197c7dbe465d0
hexc0ea3ef69f70

212112311230320 has 80 divisors (see below), whose sum is σ = 657558891861792. Its totient is φ = 56562360238080.

The previous prime is 212112311230277. The next prime is 212112311230363. The reversal of 212112311230320 is 23032113211212.

It is an interprime number because it is at equal distance from previous prime (212112311230277) and next prime (212112311230363).

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (24).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7596384 + ... + 21952896.

Almost surely, 2212112311230320 is an apocalyptic number.

212112311230320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

212112311230320 is an abundant number, since it is smaller than the sum of its proper divisors (445446580631472).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

212112311230320 is a wasteful number, since it uses less digits than its factorization.

212112311230320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14418090 (or 14418084 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 212112311230320 its reverse (23032113211212), we get a palindrome (235144424441532).

The spelling of 212112311230320 in words is "two hundred twelve trillion, one hundred twelve billion, three hundred eleven million, two hundred thirty thousand, three hundred twenty".

Divisors: 1 2 3 4 5 6 8 10 12 15 16 20 24 30 40 48 60 80 120 240 61561 123122 184683 246244 307805 369366 492488 615610 738732 923415 984976 1231220 1477464 1846830 2462440 2954928 3693660 4924880 7387320 14356513 14774640 28713026 43069539 57426052 71782565 86139078 114852104 143565130 172278156 215347695 229704208 287130260 344556312 430695390 574260520 689112624 861390780 1148521040 1722781560 3445563120 883801296793 1767602593586 2651403890379 3535205187172 4419006483965 5302807780758 7070410374344 8838012967930 10605615561516 13257019451895 14140820748688 17676025935860 21211231123032 26514038903790 35352051871720 42422462246064 53028077807580 70704103743440 106056155615160 212112311230320