131172236579 has 2 divisors, whose sum is σ = 131172236580. Its totient is φ = 131172236578.

The previous prime is 131172236567. The next prime is 131172236581. The reversal of 131172236579 is 975632271131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131172236579 - 2³² = 126877269283 is a prime.

Together with 131172236581, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (131172236599) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65586118289 + 65586118290.

It is an arithmetic number, because the mean of its divisors is an integer number (65586118290).

Almost surely, 2^131172236579 is an apocalyptic number.

131172236579 is a deficient number, since it is larger than the sum of its proper divisors (1).

131172236579 is an equidigital number, since it uses as much as digits as its factorization.

131172236579 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 476280, while the sum is 47.

The spelling of 131172236579 in words is "one hundred thirty-one billion, one hundred seventy-two million, two hundred thirty-six thousand, five hundred seventy-nine".