31313034232 has 32 divisors (see below), whose sum is σ = 58975812000. Its totient is φ = 15586268544.

The previous prime is 31313034191. The next prime is 31313034283. The reversal of 31313034232 is 23243031313.

It is a super-2 number, since 2×31313034232² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 31313034197 and 31313034206.

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, 2330269 + ... + 2343667.

It is an arithmetic number, because the mean of its divisors is an integer number (1842994125).

Almost surely, 2^31313034232 is an apocalyptic number.

It is an amenable number.

31313034232 is a deficient number, since it is larger than the sum of its proper divisors (27662777768).

31313034232 is a wasteful number, since it uses less digits than its factorization.

31313034232 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14695 (or 14691 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 25.

Adding to 31313034232 its reverse (23243031313), we get a palindrome (54556065545).

The spelling of 31313034232 in words is "thirty-one billion, three hundred thirteen million, thirty-four thousand, two hundred thirty-two".