131400343424244 has 72 divisors (see below), whose sum is σ = 325701118622880. Its totient is φ = 41223121554944.

The previous prime is 131400343424243. The next prime is 131400343424281. The reversal of 131400343424244 is 442424343004131.

It is a happy number.

It is a super-2 number, since 2×131400343424244² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131400343424243) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 352984687 + ... + 353356745.

It is an arithmetic number, because the mean of its divisors is an integer number (4523626647540).

Almost surely, 2^{131400343424244} is an apocalyptic number.

It is an amenable number.

131400343424244 is an abundant number, since it is smaller than the sum of its proper divisors (194300775198636).

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

131400343424244 is a wasteful number, since it uses less digits than its factorization.

131400343424244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473937 (or 473918 counting only the distinct ones).

The product of its (nonzero) digits is 442368, while the sum is 39.

Adding to 131400343424244 its reverse (442424343004131), we get a palindrome (573824686428375).

The spelling of 131400343424244 in words is "one hundred thirty-one trillion, four hundred billion, three hundred forty-three million, four hundred twenty-four thousand, two hundred forty-four".