31113104 has 20 divisors (see below), whose sum is σ = 65762160. Its totient is φ = 14142240.

The previous prime is 31113083. The next prime is 31113109. The reversal of 31113104 is 40131113.

It is not an unprimeable number, because it can be changed into a prime (31113109) 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, 88214 + ... + 88565.

It is an arithmetic number, because the mean of its divisors is an integer number (3288108).

Almost surely, 2^31113104 is an apocalyptic number.

It is an amenable number.

31113104 is an abundant number, since it is smaller than the sum of its proper divisors (34649056).

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

31113104 is a wasteful number, since it uses less digits than its factorization.

31113104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 176798 (or 176792 counting only the distinct ones).

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

The square root of 31113104 is about 5577.9121542025. The cubic root of 31113104 is about 314.5196474777.

Adding to 31113104 its reverse (40131113), we get a palindrome (71244217).

Subtracting 31113104 from its reverse (40131113), we obtain a square (9018009 = 3003²).

The spelling of 31113104 in words is "thirty-one million, one hundred thirteen thousand, one hundred four".