31302322131012 has 24 divisors (see below), whose sum is σ = 73038901320000. Its totient is φ = 10434085994016.

The previous prime is 31302322131007. The next prime is 31302322131023. The reversal of 31302322131012 is 21013122320313.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4116489 + ... + 8919087.

It is an arithmetic number, because the mean of its divisors is an integer number (3043287555000).

Almost surely, 2^{31302322131012} is an apocalyptic number.

It is an amenable number.

31302322131012 is an abundant number, since it is smaller than the sum of its proper divisors (41736579188988).

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

31302322131012 is a wasteful number, since it uses less digits than its factorization.

31302322131012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5345755 (or 5345753 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 31302322131012 its reverse (21013122320313), we get a palindrome (52315444451325).

The spelling of 31302322131012 in words is "thirty-one trillion, three hundred two billion, three hundred twenty-two million, one hundred thirty-one thousand, twelve".