131599541231 has 2 divisors, whose sum is σ = 131599541232. Its totient is φ = 131599541230.

The previous prime is 131599541201. The next prime is 131599541243. The reversal of 131599541231 is 132145995131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131599541231 - 2¹⁸ = 131599279087 is a prime.

It is a super-2 number, since 2×131599541231² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131599541201) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65799770615 + 65799770616.

It is an arithmetic number, because the mean of its divisors is an integer number (65799770616).

Almost surely, 2^131599541231 is an apocalyptic number.

131599541231 is a deficient number, since it is larger than the sum of its proper divisors (1).

131599541231 is an equidigital number, since it uses as much as digits as its factorization.

131599541231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 145800, while the sum is 44.

The spelling of 131599541231 in words is "one hundred thirty-one billion, five hundred ninety-nine million, five hundred forty-one thousand, two hundred thirty-one".