31104130 has 16 divisors (see below), whose sum is σ = 57179520. Its totient is φ = 12176752.

The previous prime is 31104127. The next prime is 31104173. The reversal of 31104130 is 3140113.

It is a self number, because there is not a number n which added to its sum of digits gives 31104130.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 32620 + ... + 33559.

It is an arithmetic number, because the mean of its divisors is an integer number (3573720).

Almost surely, 2^31104130 is an apocalyptic number.

31104130 is a deficient number, since it is larger than the sum of its proper divisors (26075390).

31104130 is a wasteful number, since it uses less digits than its factorization.

31104130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66233.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 31104130 is about 5577.1076733375. The cubic root of 31104130 is about 314.4894054428.

Adding to 31104130 its reverse (3140113), we get a palindrome (34244243).

The spelling of 31104130 in words is "thirty-one million, one hundred four thousand, one hundred thirty".