123612001151012 has 36 divisors (see below), whose sum is σ = 237966544213020. Its totient is φ = 56141850768960.

The previous prime is 123612001151003. The next prime is 123612001151059. The reversal of 123612001151012 is 210151100216321.

It can be written as a sum of positive squares in 2 ways, for example, as 75154057692736 + 48457943458276 = 8669144^2 + 6961174^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 102633587 + ... + 103831002.

It is an arithmetic number, because the mean of its divisors is an integer number (6610181783695).

Almost surely, 2^{123612001151012} is an apocalyptic number.

It is an amenable number.

123612001151012 is a deficient number, since it is larger than the sum of its proper divisors (114354543062008).

123612001151012 is a wasteful number, since it uses less digits than its factorization.

123612001151012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 206465852 (or 206465839 counting only the distinct ones).

The product of its (nonzero) digits is 720, while the sum is 26.

Adding to 123612001151012 its reverse (210151100216321), we get a palindrome (333763101367333).

The spelling of 123612001151012 in words is "one hundred twenty-three trillion, six hundred twelve billion, one million, one hundred fifty-one thousand, twelve".