31310322140225 has 12 divisors (see below), whose sum is σ = 38858182808496. Its totient is φ = 25026720064080.

The previous prime is 31310322140203. The next prime is 31310322140239. The reversal of 31310322140225 is 52204122301313.

It is not a de Polignac number, because 31310322140225 - 2¹⁴ = 31310322123841 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 538411547 + ... + 538469696.

It is an arithmetic number, because the mean of its divisors is an integer number (3238181900708).

Almost surely, 2^{31310322140225} is an apocalyptic number.

It is an amenable number.

31310322140225 is a deficient number, since it is larger than the sum of its proper divisors (7547860668271).

31310322140225 is a wasteful number, since it uses less digits than its factorization.

31310322140225 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1076882416 (or 1076882411 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 29.

Adding to 31310322140225 its reverse (52204122301313), we get a palindrome (83514444441538).

The spelling of 31310322140225 in words is "thirty-one trillion, three hundred ten billion, three hundred twenty-two million, one hundred forty thousand, two hundred twenty-five".