31384394122 has 16 divisors (see below), whose sum is σ = 47218276800. Its totient is φ = 15645009600.

The previous prime is 31384394101. The next prime is 31384394137. The reversal of 31384394122 is 22149348313.

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, 1738579 + ... + 1756537.

It is an arithmetic number, because the mean of its divisors is an integer number (2951142300).

Almost surely, 2^31384394122 is an apocalyptic number.

31384394122 is a deficient number, since it is larger than the sum of its proper divisors (15833882678).

31384394122 is a wasteful number, since it uses less digits than its factorization.

31384394122 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20541.

The product of its digits is 124416, while the sum is 40.

The spelling of 31384394122 in words is "thirty-one billion, three hundred eighty-four million, three hundred ninety-four thousand, one hundred twenty-two".