13121362379 has 4 divisors (see below), whose sum is σ = 13251276960. Its totient is φ = 12991447800.

The previous prime is 13121362357. The next prime is 13121362403. The reversal of 13121362379 is 97326312131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 97326312131 = 41 ⋅2373812491.

It is a cyclic number.

It is not a de Polignac number, because 13121362379 - 2⁸ = 13121362123 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13121352379) 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, 64957139 + ... + 64957340.

It is an arithmetic number, because the mean of its divisors is an integer number (3312819240).

Almost surely, 2^13121362379 is an apocalyptic number.

13121362379 is a deficient number, since it is larger than the sum of its proper divisors (129914581).

13121362379 is a wasteful number, since it uses less digits than its factorization.

13121362379 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 129914580.

The product of its digits is 40824, while the sum is 38.

The spelling of 13121362379 in words is "thirteen billion, one hundred twenty-one million, three hundred sixty-two thousand, three hundred seventy-nine".