31010103320 has 64 divisors (see below), whose sum is σ = 79776014400. Its totient is φ = 10627269120.

The previous prime is 31010103307. The next prime is 31010103323. The reversal of 31010103320 is 2330101013.

It is a Harshad number since it is a multiple of its sum of digits (14).

It is a junction number, because it is equal to n+sod(n) for n = 31010103295 and 31010103304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31010103323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 631826 + ... + 679134.

It is an arithmetic number, because the mean of its divisors is an integer number (1246500225).

Almost surely, 2^31010103320 is an apocalyptic number.

It is an amenable number.

31010103320 is an abundant number, since it is smaller than the sum of its proper divisors (48765911080).

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

31010103320 is a wasteful number, since it uses less digits than its factorization.

31010103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49668 (or 49664 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

Adding to 31010103320 its reverse (2330101013), we get a palindrome (33340204333).

The spelling of 31010103320 in words is "thirty-one billion, ten million, one hundred three thousand, three hundred twenty".