131056452391 has 2 divisors, whose sum is σ = 131056452392. Its totient is φ = 131056452390.

The previous prime is 131056452367. The next prime is 131056452487. The reversal of 131056452391 is 193254650131.

It is a happy number.

It is a weak prime.

It is an emirp because it is prime and its reverse (193254650131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131056452391 - 2³¹ = 128908968743 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131056450391) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65528226195 + 65528226196.

It is an arithmetic number, because the mean of its divisors is an integer number (65528226196).

Almost surely, 2^131056452391 is an apocalyptic number.

131056452391 is a deficient number, since it is larger than the sum of its proper divisors (1).

131056452391 is an equidigital number, since it uses as much as digits as its factorization.

131056452391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 97200, while the sum is 40.

The spelling of 131056452391 in words is "one hundred thirty-one billion, fifty-six million, four hundred fifty-two thousand, three hundred ninety-one".