131321424344 has 16 divisors (see below), whose sum is σ = 268612004520. Its totient is φ = 59691556480.

The previous prime is 131321424343. The next prime is 131321424361. The reversal of 131321424344 is 443424123131.

It is a self number, because there is not a number n which added to its sum of digits gives 131321424344.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131321424341) 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, 746144369 + ... + 746144544.

Almost surely, 2^131321424344 is an apocalyptic number.

It is an amenable number.

131321424344 is an abundant number, since it is smaller than the sum of its proper divisors (137290580176).

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

131321424344 is a wasteful number, since it uses less digits than its factorization.

131321424344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1492288930 (or 1492288926 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 131321424344 its reverse (443424123131), we get a palindrome (574745547475).

The spelling of 131321424344 in words is "one hundred thirty-one billion, three hundred twenty-one million, four hundred twenty-four thousand, three hundred forty-four".