13099531297 has 4 divisors (see below), whose sum is σ = 13669076160. Its totient is φ = 12529986436.

The previous prime is 13099531273. The next prime is 13099531303. The reversal of 13099531297 is 79213599031.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 79213599031 = 7 ⋅11316228433.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13099531297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 13099531297.

It is not an unprimeable number, because it can be changed into a prime (13099531897) 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, 284772397 + ... + 284772442.

It is an arithmetic number, because the mean of its divisors is an integer number (3417269040).

Almost surely, 2^13099531297 is an apocalyptic number.

It is an amenable number.

13099531297 is a deficient number, since it is larger than the sum of its proper divisors (569544863).

13099531297 is an equidigital number, since it uses as much as digits as its factorization.

13099531297 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 569544862.

The product of its (nonzero) digits is 459270, while the sum is 49.

The spelling of 13099531297 in words is "thirteen billion, ninety-nine million, five hundred thirty-one thousand, two hundred ninety-seven".