31010310313122 has 48 divisors (see below), whose sum is σ = 72313056480672. Its totient is φ = 8839626526080.

The previous prime is 31010310312977. The next prime is 31010310313133. The reversal of 31010310313122 is 22131301301013.

It is a happy number.

It is a super-2 number, since 2×31010310313122² (a number of 28 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 121670904 + ... + 121925507.

It is an arithmetic number, because the mean of its divisors is an integer number (1506522010014).

Almost surely, 2^{31010310313122} is an apocalyptic number.

31010310313122 is an abundant number, since it is smaller than the sum of its proper divisors (41302746167550).

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

31010310313122 is a wasteful number, since it uses less digits than its factorization.

31010310313122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 243596863 (or 243596856 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 31010310313122 its reverse (22131301301013), we get a palindrome (53141611614135).

The spelling of 31010310313122 in words is "thirty-one trillion, ten billion, three hundred ten million, three hundred thirteen thousand, one hundred twenty-two".