31022145313000 has 64 divisors (see below), whose sum is σ = 72611099308800. Its totient is φ = 12405562523200.

The previous prime is 31022145312943. The next prime is 31022145313031. The reversal of 31022145313000 is 31354122013.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (25).

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, 350620 + ... + 7884619.

It is an arithmetic number, because the mean of its divisors is an integer number (1134548426700).

Almost surely, 2^{31022145313000} is an apocalyptic number.

It is an amenable number.

31022145313000 is an abundant number, since it is smaller than the sum of its proper divisors (41588953995800).

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

31022145313000 is a wasteful number, since it uses less digits than its factorization.

31022145313000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8239027 (or 8239013 counting only the distinct ones).

The product of its (nonzero) digits is 2160, while the sum is 25.

Adding to 31022145313000 its reverse (31354122013), we get a palindrome (31053499435013).

The spelling of 31022145313000 in words is "thirty-one trillion, twenty-two billion, one hundred forty-five million, three hundred thirteen thousand".