231626232152 has 32 divisors (see below), whose sum is σ = 496792051200. Its totient is φ = 99178360224.

The previous prime is 231626232139. The next prime is 231626232161. The reversal of 231626232152 is 251232626132.

It is a super-2 number, since 2×231626232152² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

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, 1813202 + ... + 1936737.

It is an arithmetic number, because the mean of its divisors is an integer number (15524751600).

Almost surely, 2^231626232152 is an apocalyptic number.

It is an amenable number.

231626232152 is an abundant number, since it is smaller than the sum of its proper divisors (265165819048).

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

231626232152 is a wasteful number, since it uses less digits than its factorization.

231626232152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3751055 (or 3751051 counting only the distinct ones).

The product of its digits is 51840, while the sum is 35.

Adding to 231626232152 its reverse (251232626132), we get a palindrome (482858858284).

The spelling of 231626232152 in words is "two hundred thirty-one billion, six hundred twenty-six million, two hundred thirty-two thousand, one hundred fifty-two".