31342172722 has 48 divisors (see below), whose sum is σ = 57808944000. Its totient is φ = 12671969184.

The previous prime is 31342172711. The next prime is 31342172747. The reversal of 31342172722 is 22727124313.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 409804 + ... + 480232.

It is an arithmetic number, because the mean of its divisors is an integer number (1204353000).

Almost surely, 2^31342172722 is an apocalyptic number.

31342172722 is a deficient number, since it is larger than the sum of its proper divisors (26466771278).

31342172722 is a wasteful number, since it uses less digits than its factorization.

31342172722 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70703 (or 70696 counting only the distinct ones).

The product of its digits is 28224, while the sum is 34.

The spelling of 31342172722 in words is "thirty-one billion, three hundred forty-two million, one hundred seventy-two thousand, seven hundred twenty-two".