31100404 has 12 divisors (see below), whose sum is σ = 55115200. Its totient is φ = 15353208.

The previous prime is 31100401. The next prime is 31100411. The reversal of 31100404 is 40400113.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31100401) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48894 + ... + 49525.

Almost surely, 2^31100404 is an apocalyptic number.

It is an amenable number.

31100404 is a deficient number, since it is larger than the sum of its proper divisors (24014796).

31100404 is a wasteful number, since it uses less digits than its factorization.

31100404 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 98502 (or 98500 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 13.

The square root of 31100404 is about 5576.7736192175. The cubic root of 31100404 is about 314.4768472572.

Adding to 31100404 its reverse (40400113), we get a palindrome (71500517).

The spelling of 31100404 in words is "thirty-one million, one hundred thousand, four hundred four".