31303040404 has 6 divisors (see below), whose sum is σ = 54780320714. Its totient is φ = 15651520200.

The previous prime is 31303040399. The next prime is 31303040443. The reversal of 31303040404 is 40404030313.

It can be written as a sum of positive squares in only one way, i.e., 26847477904 + 4455562500 = 163852^2 + 66750^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3912880047 + ... + 3912880054.

Almost surely, 2^31303040404 is an apocalyptic number.

It is an amenable number.

31303040404 is a deficient number, since it is larger than the sum of its proper divisors (23477280310).

31303040404 is a wasteful number, since it uses less digits than its factorization.

31303040404 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7825760105 (or 7825760103 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 31303040404 its reverse (40404030313), we get a palindrome (71707070717).

The spelling of 31303040404 in words is "thirty-one billion, three hundred three million, forty thousand, four hundred four".