13312578193 has 4 divisors (see below), whose sum is σ = 13313790448. Its totient is φ = 13311365940.

The previous prime is 13312578137. The next prime is 13312578203. The reversal of 13312578193 is 39187521331.

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.

It is a cyclic number.

It is not a de Polignac number, because 13312578193 - 2¹⁷ = 13312447121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13312078193) 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, 589503 + ... + 611668.

It is an arithmetic number, because the mean of its divisors is an integer number (3328447612).

Almost surely, 2^13312578193 is an apocalyptic number.

It is an amenable number.

13312578193 is a deficient number, since it is larger than the sum of its proper divisors (1212255).

13312578193 is a wasteful number, since it uses less digits than its factorization.

13312578193 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1212254.

The product of its digits is 136080, while the sum is 43.

The spelling of 13312578193 in words is "thirteen billion, three hundred twelve million, five hundred seventy-eight thousand, one hundred ninety-three".