13125440430979 has 2 divisors, whose sum is σ = 13125440430980. Its totient is φ = 13125440430978.

The previous prime is 13125440430943. The next prime is 13125440430983. The reversal of 13125440430979 is 97903404452131.

It is a strong prime.

It is an emirp because it is prime and its reverse (97903404452131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13125440430979 - 2²¹ = 13125438333827 is a prime.

It is not a weakly prime, because it can be changed into another prime (13125440437979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6562720215489 + 6562720215490.

It is an arithmetic number, because the mean of its divisors is an integer number (6562720215490).

Almost surely, 2^{13125440430979} is an apocalyptic number.

13125440430979 is a deficient number, since it is larger than the sum of its proper divisors (1).

13125440430979 is an equidigital number, since it uses as much as digits as its factorization.

13125440430979 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3265920, while the sum is 52.

The spelling of 13125440430979 in words is "thirteen trillion, one hundred twenty-five billion, four hundred forty million, four hundred thirty thousand, nine hundred seventy-nine".