131031525511 has 2 divisors, whose sum is σ = 131031525512. Its totient is φ = 131031525510.

The previous prime is 131031525487. The next prime is 131031525517. The reversal of 131031525511 is 115525130131.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 131031525511 - 2¹¹ = 131031523463 is a prime.

It is a super-2 number, since 2×131031525511² (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 131031525511.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131031525517) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65515762755 + 65515762756.

It is an arithmetic number, because the mean of its divisors is an integer number (65515762756).

Almost surely, 2^131031525511 is an apocalyptic number.

131031525511 is a deficient number, since it is larger than the sum of its proper divisors (1).

131031525511 is an equidigital number, since it uses as much as digits as its factorization.

131031525511 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2250, while the sum is 28.

Adding to 131031525511 its reverse (115525130131), we get a palindrome (246556655642).

The spelling of 131031525511 in words is "one hundred thirty-one billion, thirty-one million, five hundred twenty-five thousand, five hundred eleven".