31113223030120 has 64 divisors (see below), whose sum is σ = 87278651625600. Its totient is φ = 9697627956480.

The previous prime is 31113223030117. The next prime is 31113223030147. The reversal of 31113223030120 is 2103032231113.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is a junction number, because it is equal to n+sod(n) for n = 31113223030091 and 31113223030100.

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, 5050844815 + ... + 5050850974.

It is an arithmetic number, because the mean of its divisors is an integer number (1363728931650).

Almost surely, 2^{31113223030120} is an apocalyptic number.

It is an amenable number.

31113223030120 is an abundant number, since it is smaller than the sum of its proper divisors (56165428595480).

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

31113223030120 is a wasteful number, since it uses less digits than its factorization.

31113223030120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10101695818 (or 10101695814 counting only the distinct ones).

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

Adding to 31113223030120 its reverse (2103032231113), we get a palindrome (33216255261233).

The spelling of 31113223030120 in words is "thirty-one trillion, one hundred thirteen billion, two hundred twenty-three million, thirty thousand, one hundred twenty".