231313133032 has 16 divisors (see below), whose sum is σ = 433726025760. Its totient is φ = 115652859504.

The previous prime is 231313132993. The next prime is 231313133033. The reversal of 231313133032 is 230331313132.

It is a junction number, because it is equal to n+sod(n) for n = 231313132988 and 231313133006.

It is not an unprimeable number, because it can be changed into a prime (231313133033) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 188598 + ... + 705829.

It is an arithmetic number, because the mean of its divisors is an integer number (27107876610).

Almost surely, 2^231313133032 is an apocalyptic number.

It is an amenable number.

231313133032 is a deficient number, since it is larger than the sum of its proper divisors (202412892728).

231313133032 is a wasteful number, since it uses less digits than its factorization.

231313133032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 926760 (or 926756 counting only the distinct ones).

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 231313133032 its reverse (230331313132), we get a palindrome (461644446164).

The spelling of 231313133032 in words is "two hundred thirty-one billion, three hundred thirteen million, one hundred thirty-three thousand, thirty-two".