131031525555 has 192 divisors, whose sum is σ = 283136974848. Its totient is φ = 56868065280.

The previous prime is 131031525533. The next prime is 131031525589. The reversal of 131031525555 is 555525130131.

131031525555 is a `hidden beast` number, since 1 + 310 + 315 + 25 + 5 + 5 + 5 = 666.

It is not a de Polignac number, because 131031525555 - 2⁹ = 131031525043 is a prime.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13969027 + ... + 13978403.

It is an arithmetic number, because the mean of its divisors is an integer number (1474671744).

Almost surely, 2^131031525555 is an apocalyptic number.

131031525555 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

131031525555 is an abundant number, since it is smaller than the sum of its proper divisors (152105449293).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

131031525555 is an equidigital number, since it uses as much as digits as its factorization.

131031525555 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9488 (or 9476 counting only the distinct ones).

The product of its (nonzero) digits is 56250, while the sum is 36.

Adding to 131031525555 its reverse (555525130131), we get a palindrome (686556655686).

The spelling of 131031525555 in words is "one hundred thirty-one billion, thirty-one million, five hundred twenty-five thousand, five hundred fifty-five".