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20121130211332 = 22193724129690671
BaseRepresentation
bin1001001001100110100001…
…10100011001100000000100
32122020120011011022210122011
410210303100310121200010
510114131033313230312
6110443304122544004
74144463235566023
oct444632064314004
978216134283564
1020121130211332
1164583614a1707
12230b739968004
13b2c550698cb7
144d7c217288ba
1524d5e418dda7
hex124cd0d19804

20121130211332 has 48 divisors (see below), whose sum is σ = 38224958759680. Its totient is φ = 9234985996800.

The previous prime is 20121130211297. The next prime is 20121130211333. The reversal of 20121130211332 is 23311203112102.

It is not an unprimeable number, because it can be changed into a prime (20121130211333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 14167644 + ... + 15523027.

Almost surely, 220121130211332 is an apocalyptic number.

It is an amenable number.

20121130211332 is a deficient number, since it is larger than the sum of its proper divisors (18103828548348).

20121130211332 is a wasteful number, since it uses less digits than its factorization.

20121130211332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29690972 (or 29690970 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 20121130211332 its reverse (23311203112102), we get a palindrome (43432333323434).

The spelling of 20121130211332 in words is "twenty trillion, one hundred twenty-one billion, one hundred thirty million, two hundred eleven thousand, three hundred thirty-two".

Divisors: 1 2 4 19 37 38 74 76 148 241 482 703 964 1406 2812 4579 8917 9158 17834 18316 35668 169423 338846 677692 29690671 59381342 118762684 564122749 1098554827 1128245498 2197109654 2256490996 4394219308 7155451711 14310903422 20872541713 28621806844 41745083426 83490166852 135953582509 264751713307 271907165018 529503426614 543814330036 1059006853228 5030282552833 10060565105666 20121130211332