13191199120 has 40 divisors (see below), whose sum is σ = 33457680000. Its totient is φ = 4796799360.

The previous prime is 13191199069. The next prime is 13191199121. The reversal of 13191199120 is 2199119131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 13191199120.

It is not an unprimeable number, because it can be changed into a prime (13191199121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7494120 + ... + 7495879.

It is an arithmetic number, because the mean of its divisors is an integer number (836442000).

Almost surely, 2^13191199120 is an apocalyptic number.

13191199120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13191199120 is an abundant number, since it is smaller than the sum of its proper divisors (20266480880).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13191199120 is a wasteful number, since it uses less digits than its factorization.

13191199120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14990023 (or 14990017 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 37.

The spelling of 13191199120 in words is "thirteen billion, one hundred ninety-one million, one hundred ninety-nine thousand, one hundred twenty".