131327776357 has 4 divisors (see below), whose sum is σ = 134877175756. Its totient is φ = 127778376960.

The previous prime is 131327776339. The next prime is 131327776379. The reversal of 131327776357 is 753677723131.

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

It can be written as a sum of positive squares in 2 ways, for example, as 102143520801 + 29184255556 = 319599^2 + 170834^2 .

It is a cyclic number.

It is not a de Polignac number, because 131327776357 - 2³⁵ = 96968037989 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131325776357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774699644 + ... + 1774699717.

It is an arithmetic number, because the mean of its divisors is an integer number (33719293939).

Almost surely, 2^131327776357 is an apocalyptic number.

It is an amenable number.

131327776357 is a deficient number, since it is larger than the sum of its proper divisors (3549399399).

131327776357 is an equidigital number, since it uses as much as digits as its factorization.

131327776357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549399398.

The product of its digits is 3889620, while the sum is 52.

The spelling of 131327776357 in words is "one hundred thirty-one billion, three hundred twenty-seven million, seven hundred seventy-six thousand, three hundred fifty-seven".