3131240104 has 8 divisors (see below), whose sum is σ = 5871075210. Its totient is φ = 1565620048.

The previous prime is 3131240087. The next prime is 3131240111. The reversal of 3131240104 is 4010421313.

It can be written as a sum of positive squares in only one way, i.e., 2803702500 + 327537604 = 52950^2 + 18098^2 .

It is a tau number, because it is divible by the number of its divisors (8).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 195702499 + ... + 195702514.

Almost surely, 2^3131240104 is an apocalyptic number.

It is an amenable number.

3131240104 is a deficient number, since it is larger than the sum of its proper divisors (2739835106).

3131240104 is a wasteful number, since it uses less digits than its factorization.

3131240104 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391405019 (or 391405015 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 3131240104 is about 55957.4847897938. The cubic root of 3131240104 is about 1462.9813514202.

Adding to 3131240104 its reverse (4010421313), we get a palindrome (7141661417).

The spelling of 3131240104 in words is "three billion, one hundred thirty-one million, two hundred forty thousand, one hundred four".