12970979383 has 4 divisors (see below), whose sum is σ = 12971313208. Its totient is φ = 12970645560.

The previous prime is 12970979363. The next prime is 12970979393. The reversal of 12970979383 is 38397907921.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-12970979383 is a prime.

It is a super-2 number, since 2×12970979383² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12970979303) 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, 99573 + ... + 189358.

It is an arithmetic number, because the mean of its divisors is an integer number (3242828302).

Almost surely, 2^12970979383 is an apocalyptic number.

12970979383 is a deficient number, since it is larger than the sum of its proper divisors (333825).

12970979383 is an equidigital number, since it uses as much as digits as its factorization.

12970979383 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 333824.

The product of its (nonzero) digits is 5143824, while the sum is 58.

The spelling of 12970979383 in words is "twelve billion, nine hundred seventy million, nine hundred seventy-nine thousand, three hundred eighty-three".