31345225351212 has 48 divisors (see below), whose sum is σ = 75500883182592. Its totient is φ = 10111000607040.

The previous prime is 31345225351211. The next prime is 31345225351277. The reversal of 31345225351212 is 21215352254313.

It is not an unprimeable number, because it can be changed into a prime (31345225351211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8980678 + ... + 11972594.

It is an arithmetic number, because the mean of its divisors is an integer number (1572935066304).

Almost surely, 2^{31345225351212} is an apocalyptic number.

It is an amenable number.

31345225351212 is an abundant number, since it is smaller than the sum of its proper divisors (44155657831380).

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

31345225351212 is a wasteful number, since it uses less digits than its factorization.

31345225351212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3020118 (or 3020116 counting only the distinct ones).

The product of its digits is 216000, while the sum is 39.

The spelling of 31345225351212 in words is "thirty-one trillion, three hundred forty-five billion, two hundred twenty-five million, three hundred fifty-one thousand, two hundred twelve".