131401502131 has 2 divisors, whose sum is σ = 131401502132. Its totient is φ = 131401502130.

The previous prime is 131401502129. The next prime is 131401502143. The reversal of 131401502131 is 131205104131.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131401502131 - 2¹ = 131401502129 is a prime.

It is a super-2 number, since 2×131401502131² (a number of 23 digits) contains 22 as substring.

Together with 131401502129, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (131401502171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65700751065 + 65700751066.

It is an arithmetic number, because the mean of its divisors is an integer number (65700751066).

Almost surely, 2^131401502131 is an apocalyptic number.

131401502131 is a deficient number, since it is larger than the sum of its proper divisors (1).

131401502131 is an equidigital number, since it uses as much as digits as its factorization.

131401502131 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 22.

Adding to 131401502131 its reverse (131205104131), we get a palindrome (262606606262).

The spelling of 131401502131 in words is "one hundred thirty-one billion, four hundred one million, five hundred two thousand, one hundred thirty-one".