13099397443 has 12 divisors (see below), whose sum is σ = 14401431520. Its totient is φ = 11906128080.

The previous prime is 13099397419. The next prime is 13099397491. The reversal of 13099397443 is 34479399031.

It is not a de Polignac number, because 13099397443 - 2²¹ = 13097300291 is a prime.

It is a hoax number, since the sum of its digits (52) coincides with the sum of the digits of its distinct prime factors.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13099397543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 897478 + ... + 911956.

Almost surely, 2^13099397443 is an apocalyptic number.

13099397443 is a deficient number, since it is larger than the sum of its proper divisors (1302034077).

13099397443 is a wasteful number, since it uses less digits than its factorization.

13099397443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21978 (or 21967 counting only the distinct ones).

The product of its (nonzero) digits is 2204496, while the sum is 52.

The spelling of 13099397443 in words is "thirteen billion, ninety-nine million, three hundred ninety-seven thousand, four hundred forty-three".