31631126232 has 16 divisors (see below), whose sum is σ = 79077815640. Its totient is φ = 10543708736.

The previous prime is 31631126209. The next prime is 31631126269. The reversal of 31631126232 is 23262113613.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 31631126232.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 658981773 + ... + 658981820.

Almost surely, 2^31631126232 is an apocalyptic number.

It is an amenable number.

31631126232 is an abundant number, since it is smaller than the sum of its proper divisors (47446689408).

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

31631126232 is a wasteful number, since it uses less digits than its factorization.

31631126232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1317963602 (or 1317963598 counting only the distinct ones).

The product of its digits is 7776, while the sum is 30.

Adding to 31631126232 its reverse (23262113613), we get a palindrome (54893239845).

The spelling of 31631126232 in words is "thirty-one billion, six hundred thirty-one million, one hundred twenty-six thousand, two hundred thirty-two".