13312099 has 4 divisors (see below), whose sum is σ = 13319464. Its totient is φ = 13304736.

The previous prime is 13312093. The next prime is 13312109. The reversal of 13312099 is 99021331.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 13312099 - 2⁵ = 13312067 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312093) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1099 + ... + 5275.

It is an arithmetic number, because the mean of its divisors is an integer number (3329866).

Almost surely, 2^13312099 is an apocalyptic number.

13312099 is a deficient number, since it is larger than the sum of its proper divisors (7365).

13312099 is an equidigital number, since it uses as much as digits as its factorization.

13312099 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7364.

The product of its (nonzero) digits is 1458, while the sum is 28.

The square root of 13312099 is about 3648.5749272833. The cubic root of 13312099 is about 237.0002729854. Note that the first 3 decimals are identical.

The spelling of 13312099 in words is "thirteen million, three hundred twelve thousand, ninety-nine".