13002081903 has 32 divisors (see below), whose sum is σ = 20054059200. Its totient is φ = 8318204928.

The previous prime is 13002081893. The next prime is 13002081923. The reversal of 13002081903 is 30918020031.

It is not a de Polignac number, because 13002081903 - 2¹⁴ = 13002065519 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13002081923) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 16218 + ... + 162071.

It is an arithmetic number, because the mean of its divisors is an integer number (626689350).

Almost surely, 2^13002081903 is an apocalyptic number.

13002081903 is a deficient number, since it is larger than the sum of its proper divisors (7051977297).

13002081903 is a wasteful number, since it uses less digits than its factorization.

13002081903 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 178408 (or 178402 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 27.

The spelling of 13002081903 in words is "thirteen billion, two million, eighty-one thousand, nine hundred three".