13201979903 has 16 divisors (see below), whose sum is σ = 15155143680. Its totient is φ = 11265674400.

The previous prime is 13201979899. The next prime is 13201979911. The reversal of 13201979903 is 30997910231.

It is a cyclic number.

It is not a de Polignac number, because 13201979903 - 2² = 13201979899 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13201999903) 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, 4815113 + ... + 4817853.

It is an arithmetic number, because the mean of its divisors is an integer number (947196480).

Almost surely, 2^13201979903 is an apocalyptic number.

13201979903 is a deficient number, since it is larger than the sum of its proper divisors (1953163777).

13201979903 is a wasteful number, since it uses less digits than its factorization.

13201979903 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5558.

The product of its (nonzero) digits is 91854, while the sum is 44.

The spelling of 13201979903 in words is "thirteen billion, two hundred one million, nine hundred seventy-nine thousand, nine hundred three".