31103132 has 12 divisors (see below), whose sum is σ = 57632400. Its totient is φ = 14636736.

The previous prime is 31103129. The next prime is 31103159. The reversal of 31103132 is 23130113.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 228632 + ... + 228767.

It is an arithmetic number, because the mean of its divisors is an integer number (4802700).

Almost surely, 2^31103132 is an apocalyptic number.

It is an amenable number.

31103132 is a deficient number, since it is larger than the sum of its proper divisors (26529268).

31103132 is a wasteful number, since it uses less digits than its factorization.

31103132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457420 (or 457418 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 14.

The square root of 31103132 is about 5577.0181997193. The cubic root of 31103132 is about 314.4860418618.

Adding to 31103132 its reverse (23130113), we get a palindrome (54233245).

The spelling of 31103132 in words is "thirty-one million, one hundred three thousand, one hundred thirty-two".