13120553144 has 16 divisors (see below), whose sum is σ = 24830955000. Its totient is φ = 6498965152.

The previous prime is 13120553137. The next prime is 13120553161. The reversal of 13120553144 is 44135502131.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7663019 + ... + 7664730.

Almost surely, 2^13120553144 is an apocalyptic number.

It is an amenable number.

13120553144 is a deficient number, since it is larger than the sum of its proper divisors (11710401856).

13120553144 is a wasteful number, since it uses less digits than its factorization.

13120553144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15327862 (or 15327858 counting only the distinct ones).

The product of its (nonzero) digits is 7200, while the sum is 29.

The spelling of 13120553144 in words is "thirteen billion, one hundred twenty million, five hundred fifty-three thousand, one hundred forty-four".