231201123031012 has 24 divisors (see below), whose sum is σ = 410451679249920. Its totient is φ = 113940319969440.

The previous prime is 231201123031007. The next prime is 231201123031057. The reversal of 231201123031012 is 210130321102132.

It is a super-2 number, since 2×231201123031012² (a number of 30 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1388078518 + ... + 1388245069.

It is an arithmetic number, because the mean of its divisors is an integer number (17102153302080).

Almost surely, 2^{231201123031012} is an apocalyptic number.

It is an amenable number.

231201123031012 is a deficient number, since it is larger than the sum of its proper divisors (179250556218908).

231201123031012 is a wasteful number, since it uses less digits than its factorization.

231201123031012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2776323891 (or 2776323889 counting only the distinct ones).

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

Adding to 231201123031012 its reverse (210130321102132), we get a palindrome (441331444133144).

The spelling of 231201123031012 in words is "two hundred thirty-one trillion, two hundred one billion, one hundred twenty-three million, thirty-one thousand, twelve".