13115321990 has 8 divisors (see below), whose sum is σ = 23607579600. Its totient is φ = 5246128792.

The previous prime is 13115321971. The next prime is 13115322013. The reversal of 13115321990 is 9912351131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a self number, because there is not a number n which added to its sum of digits gives 13115321990.

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, 655766090 + ... + 655766109.

It is an arithmetic number, because the mean of its divisors is an integer number (2950947450).

Almost surely, 2^13115321990 is an apocalyptic number.

13115321990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13115321990 is a deficient number, since it is larger than the sum of its proper divisors (10492257610).

13115321990 is a wasteful number, since it uses less digits than its factorization.

13115321990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1311532206.

The product of its (nonzero) digits is 7290, while the sum is 35.

The spelling of 13115321990 in words is "thirteen billion, one hundred fifteen million, three hundred twenty-one thousand, nine hundred ninety".