31310112322 has 4 divisors (see below), whose sum is σ = 46965168486. Its totient is φ = 15655056160.

The previous prime is 31310112307. The next prime is 31310112343. The reversal of 31310112322 is 22321101313.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 30628850121 + 681262201 = 175011^2 + 26101^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 31310112322.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7827528079 + ... + 7827528082.

Almost surely, 2^31310112322 is an apocalyptic number.

31310112322 is a deficient number, since it is larger than the sum of its proper divisors (15655056164).

31310112322 is a wasteful number, since it uses less digits than its factorization.

31310112322 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15655056163.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 31310112322 its reverse (22321101313), we get a palindrome (53631213635).

The spelling of 31310112322 in words is "thirty-one billion, three hundred ten million, one hundred twelve thousand, three hundred twenty-two".