31020443404 has 24 divisors (see below), whose sum is σ = 57148876400. Its totient is φ = 14692363200.

The previous prime is 31020443381. The next prime is 31020443411. The reversal of 31020443404 is 40434402013.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1097854 + ... + 1125754.

Almost surely, 2^31020443404 is an apocalyptic number.

It is an amenable number.

31020443404 is a deficient number, since it is larger than the sum of its proper divisors (26128432996).

31020443404 is a wasteful number, since it uses less digits than its factorization.

31020443404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42553 (or 42551 counting only the distinct ones).

The product of its (nonzero) digits is 4608, while the sum is 25.

Adding to 31020443404 its reverse (40434402013), we get a palindrome (71454845417).

The spelling of 31020443404 in words is "thirty-one billion, twenty million, four hundred forty-three thousand, four hundred four".