31213413004 has 12 divisors (see below), whose sum is σ = 54641695528. Its totient is φ = 15601500000.

The previous prime is 31213413001. The next prime is 31213413019. The reversal of 31213413004 is 40031431213.

It is a hoax number, since the sum of its digits (22) coincides with the sum of the digits of its distinct prime factors.

It is not an unprimeable number, because it can be changed into a prime (31213413001) by changing a digit.

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 in 3 ways as a sum of consecutive naturals, for example, 1288122 + ... + 1312129.

Almost surely, 2^31213413004 is an apocalyptic number.

It is an amenable number.

31213413004 is a deficient number, since it is larger than the sum of its proper divisors (23428282524).

31213413004 is a wasteful number, since it uses less digits than its factorization.

31213413004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2603256 (or 2603254 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 31213413004 its reverse (40031431213), we get a palindrome (71244844217).

The spelling of 31213413004 in words is "thirty-one billion, two hundred thirteen million, four hundred thirteen thousand, four".