13171977983 has 2 divisors, whose sum is σ = 13171977984. Its totient is φ = 13171977982.

The previous prime is 13171977953. The next prime is 13171977991. The reversal of 13171977983 is 38977917131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 13171977983 - 2⁸ = 13171977727 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13171977913) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6585988991 + 6585988992.

It is an arithmetic number, because the mean of its divisors is an integer number (6585988992).

Almost surely, 2^13171977983 is an apocalyptic number.

13171977983 is a deficient number, since it is larger than the sum of its proper divisors (1).

13171977983 is an equidigital number, since it uses as much as digits as its factorization.

13171977983 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2000376, while the sum is 56.

The spelling of 13171977983 in words is "thirteen billion, one hundred seventy-one million, nine hundred seventy-seven thousand, nine hundred eighty-three".