131345540125031 has 2 divisors, whose sum is σ = 131345540125032. Its totient is φ = 131345540125030.

The previous prime is 131345540125021. The next prime is 131345540125097. The reversal of 131345540125031 is 130521045543131.

It is a weak prime.

It is an emirp because it is prime and its reverse (130521045543131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 131345540125031 - 2³⁸ = 131070662218087 is a prime.

It is a super-2 number, since 2×131345540125031² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131345540125021) 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 as a sum of consecutive naturals, namely, 65672770062515 + 65672770062516.

It is an arithmetic number, because the mean of its divisors is an integer number (65672770062516).

Almost surely, 2^{131345540125031} is an apocalyptic number.

131345540125031 is a deficient number, since it is larger than the sum of its proper divisors (1).

131345540125031 is an equidigital number, since it uses as much as digits as its factorization.

131345540125031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108000, while the sum is 38.

Adding to 131345540125031 its reverse (130521045543131), we get a palindrome (261866585668162).

The spelling of 131345540125031 in words is "one hundred thirty-one trillion, three hundred forty-five billion, five hundred forty million, one hundred twenty-five thousand, thirty-one".