131312353244 has 12 divisors (see below), whose sum is σ = 233033190768. Its totient is φ = 64731441600.

The previous prime is 131312353219. The next prime is 131312353247. The reversal of 131312353244 is 442353213131.

It is a super-2 number, since 2×131312353244² (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 131312353244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131312353247) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 231183437 + ... + 231184004.

It is an arithmetic number, because the mean of its divisors is an integer number (19419432564).

Almost surely, 2^131312353244 is an apocalyptic number.

It is an amenable number.

131312353244 is a deficient number, since it is larger than the sum of its proper divisors (101720837524).

131312353244 is a wasteful number, since it uses less digits than its factorization.

131312353244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 462367516 (or 462367514 counting only the distinct ones).

The product of its digits is 25920, while the sum is 32.

Adding to 131312353244 its reverse (442353213131), we get a palindrome (573665566375).

The spelling of 131312353244 in words is "one hundred thirty-one billion, three hundred twelve million, three hundred fifty-three thousand, two hundred forty-four".