31311104 has 36 divisors (see below), whose sum is σ = 68187840. Its totient is φ = 14231040.

The previous prime is 31311101. The next prime is 31311109. The reversal of 31311104 is 40111313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31311101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2744 + ... + 8375.

Almost surely, 2^31311104 is an apocalyptic number.

It is an amenable number.

31311104 is an abundant number, since it is smaller than the sum of its proper divisors (36876736).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

31311104 is a wasteful number, since it uses less digits than its factorization.

31311104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11146 (or 11132 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 31311104 is about 5595.6325826487. The cubic root of 31311104 is about 315.1854253871.

Adding to 31311104 its reverse (40111313), we get a palindrome (71422417).

The spelling of 31311104 in words is "thirty-one million, three hundred eleven thousand, one hundred four".