31023321110320 has 80 divisors (see below), whose sum is σ = 89927341210368. Its totient is φ = 9669606577920.

The previous prime is 31023321110297. The next prime is 31023321110393. The reversal of 31023321110320 is 2301112332013.

It is a tau number, because it is divible by the number of its divisors (80).

It is a super-2 number, since 2×31023321110320² (a number of 28 digits) contains 22 as substring.

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 = 31023321110291 and 31023321110300.

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, 2518120554 + ... + 2518132873.

Almost surely, 2^{31023321110320} is an apocalyptic number.

It is an amenable number.

31023321110320 is an abundant number, since it is smaller than the sum of its proper divisors (58904020100048).

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

31023321110320 is a wasteful number, since it uses less digits than its factorization.

31023321110320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5036253458 (or 5036253452 counting only the distinct ones).

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

Adding to 31023321110320 its reverse (2301112332013), we get a palindrome (33324433442333).

The spelling of 31023321110320 in words is "thirty-one trillion, twenty-three billion, three hundred twenty-one million, one hundred ten thousand, three hundred twenty".