31113312232 has 8 divisors (see below), whose sum is σ = 58337460450. Its totient is φ = 15556656112.

The previous prime is 31113312227. The next prime is 31113312259. The reversal of 31113312232 is 23221331113.

It can be written as a sum of positive squares in only one way, i.e., 23584973476 + 7528338756 = 153574^2 + 86766^2 .

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

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1944582007 + ... + 1944582022.

Almost surely, 2^31113312232 is an apocalyptic number.

It is an amenable number.

31113312232 is a deficient number, since it is larger than the sum of its proper divisors (27224148218).

31113312232 is a wasteful number, since it uses less digits than its factorization.

31113312232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3889164035 (or 3889164031 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 31113312232 its reverse (23221331113), we get a palindrome (54334643345).

The spelling of 31113312232 in words is "thirty-one billion, one hundred thirteen million, three hundred twelve thousand, two hundred thirty-two".