31304102 has 16 divisors (see below), whose sum is σ = 48546000. Its totient is φ = 15131040.

The previous prime is 31304029. The next prime is 31304107. The reversal of 31304102 is 20140313.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (31304107) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5024 + ... + 9372.

It is an arithmetic number, because the mean of its divisors is an integer number (3034125).

Almost surely, 2^31304102 is an apocalyptic number.

31304102 is a deficient number, since it is larger than the sum of its proper divisors (17241898).

31304102 is a wasteful number, since it uses less digits than its factorization.

31304102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4471.

The product of its (nonzero) digits is 72, while the sum is 14.

The square root of 31304102 is about 5595.0068811396. The cubic root of 31304102 is about 315.1619290062.

Adding to 31304102 its reverse (20140313), we get a palindrome (51444415).

The spelling of 31304102 in words is "thirty-one million, three hundred four thousand, one hundred two".