31013213223000 has 128 divisors (see below), whose sum is σ = 99882555402240. Its totient is φ = 8003409840000.

The previous prime is 31013213222947. The next prime is 31013213223011. The reversal of 31013213223000 is 32231231013.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 166644706 + ... + 166830705.

It is an arithmetic number, because the mean of its divisors is an integer number (780332464080).

Almost surely, 2^{31013213223000} is an apocalyptic number.

31013213223000 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

31013213223000 is an abundant number, since it is smaller than the sum of its proper divisors (68869342179240).

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

31013213223000 is a wasteful number, since it uses less digits than its factorization.

31013213223000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333475466 (or 333475452 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 31013213223000 its reverse (32231231013), we get a palindrome (31045444454013).

The spelling of 31013213223000 in words is "thirty-one trillion, thirteen billion, two hundred thirteen million, two hundred twenty-three thousand".