131307487279 has 2 divisors, whose sum is σ = 131307487280. Its totient is φ = 131307487278.

The previous prime is 131307487253. The next prime is 131307487291. The reversal of 131307487279 is 972784703131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131307487279 - 2²¹ = 131305390127 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131307487379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65653743639 + 65653743640.

It is an arithmetic number, because the mean of its divisors is an integer number (65653743640).

Almost surely, 2^131307487279 is an apocalyptic number.

131307487279 is a deficient number, since it is larger than the sum of its proper divisors (1).

131307487279 is an equidigital number, since it uses as much as digits as its factorization.

131307487279 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1778112, while the sum is 52.

The spelling of 131307487279 in words is "one hundred thirty-one billion, three hundred seven million, four hundred eighty-seven thousand, two hundred seventy-nine".