13190308921 has 4 divisors (see below), whose sum is σ = 13193658112. Its totient is φ = 13186959732.

The previous prime is 13190308907. The next prime is 13190308927. The reversal of 13190308921 is 12980309131.

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: 12980309131 = 577 ⋅22496203.

It is a cyclic number.

It is not a de Polignac number, because 13190308921 - 2¹¹ = 13190306873 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13190308927) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1668681 + ... + 1676566.

It is an arithmetic number, because the mean of its divisors is an integer number (3298414528).

Almost surely, 2^13190308921 is an apocalyptic number.

It is an amenable number.

13190308921 is a deficient number, since it is larger than the sum of its proper divisors (3349191).

13190308921 is an equidigital number, since it uses as much as digits as its factorization.

13190308921 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3349190.

The product of its (nonzero) digits is 11664, while the sum is 37.

The spelling of 13190308921 in words is "thirteen billion, one hundred ninety million, three hundred eight thousand, nine hundred twenty-one".