13201979902 has 4 divisors (see below), whose sum is σ = 19802969856. Its totient is φ = 6600989950.

The previous prime is 13201979899. The next prime is 13201979911. The reversal of 13201979902 is 20997910231.

It is a semiprime because it is the product of two primes.

It is a super-3 number, since 3×13201979902³ (a number of 31 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3300494974 + ... + 3300494977.

It is an arithmetic number, because the mean of its divisors is an integer number (4950742464).

Almost surely, 2^13201979902 is an apocalyptic number.

13201979902 is a deficient number, since it is larger than the sum of its proper divisors (6600989954).

13201979902 is an equidigital number, since it uses as much as digits as its factorization.

13201979902 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6600989953.

The product of its (nonzero) digits is 61236, while the sum is 43.

The spelling of 13201979902 in words is "thirteen billion, two hundred one million, nine hundred seventy-nine thousand, nine hundred two".