31310113232 has 20 divisors (see below), whose sum is σ = 60666132000. Its totient is φ = 15654337248.

The previous prime is 31310113223. The next prime is 31310113309. The reversal of 31310113232 is 23231101313.

It is a super-2 number, since 2×31310113232² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 564269 + ... + 617267.

It is an arithmetic number, because the mean of its divisors is an integer number (3033306600).

Almost surely, 2^31310113232 is an apocalyptic number.

It is an amenable number.

31310113232 is a deficient number, since it is larger than the sum of its proper divisors (29356018768).

31310113232 is a wasteful number, since it uses less digits than its factorization.

31310113232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 89930 (or 89924 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 31310113232 its reverse (23231101313), we get a palindrome (54541214545).

The spelling of 31310113232 in words is "thirty-one billion, three hundred ten million, one hundred thirteen thousand, two hundred thirty-two".