13121502004 has 48 divisors (see below), whose sum is σ = 24906112000. Its totient is φ = 6012838656.

The previous prime is 13121501999. The next prime is 13121502007. The reversal of 13121502004 is 40020512131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13121502007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6280192 + ... + 6282280.

Almost surely, 2^13121502004 is an apocalyptic number.

It is an amenable number.

13121502004 is a deficient number, since it is larger than the sum of its proper divisors (11784609996).

13121502004 is a wasteful number, since it uses less digits than its factorization.

13121502004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2912 (or 2910 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 19.

The spelling of 13121502004 in words is "thirteen billion, one hundred twenty-one million, five hundred two thousand, four".