131240237613 has 32 divisors (see below), whose sum is σ = 192381657600. Its totient is φ = 79281343296.

The previous prime is 131240237603. The next prime is 131240237617. The reversal of 131240237613 is 316732042131.

It is a happy number.

It is not a de Polignac number, because 131240237613 - 2²⁴ = 131223460397 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131240237617) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 402931 + ... + 651792.

It is an arithmetic number, because the mean of its divisors is an integer number (6011926800).

Almost surely, 2^131240237613 is an apocalyptic number.

It is an amenable number.

131240237613 is a deficient number, since it is larger than the sum of its proper divisors (61141419987).

131240237613 is a wasteful number, since it uses less digits than its factorization.

131240237613 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1054841.

The product of its (nonzero) digits is 18144, while the sum is 33.

Adding to 131240237613 its reverse (316732042131), we get a palindrome (447972279744).

The spelling of 131240237613 in words is "one hundred thirty-one billion, two hundred forty million, two hundred thirty-seven thousand, six hundred thirteen".