131444523318 has 16 divisors (see below), whose sum is σ = 264463234560. Its totient is φ = 43552476456.

The previous prime is 131444523317. The next prime is 131444523347. The reversal of 131444523318 is 813325444131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131444523317) 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, 65590078 + ... + 65592081.

It is an arithmetic number, because the mean of its divisors is an integer number (16528952160).

Almost surely, 2^131444523318 is an apocalyptic number.

131444523318 is an abundant number, since it is smaller than the sum of its proper divisors (133018711242).

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

131444523318 is a wasteful number, since it uses less digits than its factorization.

131444523318 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131182331.

The product of its digits is 138240, while the sum is 39.

Adding to 131444523318 its reverse (813325444131), we get a palindrome (944769967449).

The spelling of 131444523318 in words is "one hundred thirty-one billion, four hundred forty-four million, five hundred twenty-three thousand, three hundred eighteen".