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212312031003 = 32113821254279
BaseRepresentation
bin1100010110111011001…
…0000111111100011011
3202022000101112122220200
43011232302013330123
511434303334443003
6241311303353243
721224201326062
oct3055662077433
9668011478820
10212312031003
118204a674336
1235192a52823
1317037004917
14a3c13251d9
1557c92cd6a3
hex316ec87f1b

212312031003 has 24 divisors (see below), whose sum is σ = 309764913120. Its totient is φ = 140117349120.

The previous prime is 212312030951. The next prime is 212312031007. The reversal of 212312031003 is 300130213212.

It is not a de Polignac number, because 212312031003 - 28 = 212312030747 is a prime.

It is not an unprimeable number, because it can be changed into a prime (212312031007) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 707818 + ... + 962096.

It is an arithmetic number, because the mean of its divisors is an integer number (12906871380).

Almost surely, 2212312031003 is an apocalyptic number.

212312031003 is a deficient number, since it is larger than the sum of its proper divisors (97452882117).

212312031003 is a wasteful number, since it uses less digits than its factorization.

212312031003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 255219 (or 255216 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 212312031003 its reverse (300130213212), we get a palindrome (512442244215).

The spelling of 212312031003 in words is "two hundred twelve billion, three hundred twelve million, thirty-one thousand, three".

Divisors: 1 3 9 113 339 821 1017 2463 7389 92773 254279 278319 762837 834957 2288511 28733527 86200581 208763059 258601743 626289177 1878867531 23590225667 70770677001 212312031003