31303122385 has 16 divisors (see below), whose sum is σ = 37735854912. Its totient is φ = 24927880000.

The previous prime is 31303122373. The next prime is 31303122391. The reversal of 31303122385 is 58322130313.

It is not a de Polignac number, because 31303122385 - 2³³ = 22713187793 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2416947 + ... + 2429863.

It is an arithmetic number, because the mean of its divisors is an integer number (2358490932).

Almost surely, 2^31303122385 is an apocalyptic number.

It is an amenable number.

31303122385 is a deficient number, since it is larger than the sum of its proper divisors (6432732527).

31303122385 is a wasteful number, since it uses less digits than its factorization.

31303122385 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15104.

The product of its (nonzero) digits is 12960, while the sum is 31.

Adding to 31303122385 its reverse (58322130313), we get a palindrome (89625252698).

The spelling of 31303122385 in words is "thirty-one billion, three hundred three million, one hundred twenty-two thousand, three hundred eighty-five".