131353412345531 has 8 divisors (see below), whose sum is σ = 139080184784640. Its totient is φ = 123626651142528.

The previous prime is 131353412345521. The next prime is 131353412345543. The reversal of 131353412345531 is 135543214353131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131353412345531 - 2¹⁰ = 131353412344507 is a prime.

It is a super-2 number, since 2×131353412345531² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131353412345521) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 39263765 + ... + 42477641.

It is an arithmetic number, because the mean of its divisors is an integer number (17385023098080).

Almost surely, 2^{131353412345531} is an apocalyptic number.

131353412345531 is a deficient number, since it is larger than the sum of its proper divisors (7726772439109).

131353412345531 is a wasteful number, since it uses less digits than its factorization.

131353412345531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5618053.

The product of its digits is 972000, while the sum is 44.

Adding to 131353412345531 its reverse (135543214353131), we get a palindrome (266896626698662).

The spelling of 131353412345531 in words is "one hundred thirty-one trillion, three hundred fifty-three billion, four hundred twelve million, three hundred forty-five thousand, five hundred thirty-one".