31231002312232 has 8 divisors (see below), whose sum is σ = 58558129335450. Its totient is φ = 15615501156112.

The previous prime is 31231002312161. The next prime is 31231002312277. The reversal of 31231002312232 is 23221320013213.

It can be written as a sum of positive squares in only one way, i.e., 23194491716356 + 8036510595876 = 4816066^2 + 2834874^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 31231002312197 and 31231002312206.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1951937644507 + ... + 1951937644522.

Almost surely, 2^{31231002312232} is an apocalyptic number.

It is an amenable number.

31231002312232 is a deficient number, since it is larger than the sum of its proper divisors (27327127023218).

31231002312232 is a wasteful number, since it uses less digits than its factorization.

31231002312232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3903875289035 (or 3903875289031 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 31231002312232 its reverse (23221320013213), we get a palindrome (54452322325445).

The spelling of 31231002312232 in words is "thirty-one trillion, two hundred thirty-one billion, two million, three hundred twelve thousand, two hundred thirty-two".