131031402412244 has 6 divisors (see below), whose sum is σ = 229304954221434. Its totient is φ = 65515701206120.

The previous prime is 131031402412241. The next prime is 131031402412259. The reversal of 131031402412244 is 442214204130131.

It can be written as a sum of positive squares in only one way, i.e., 124507658890000 + 6523743522244 = 11158300^2 + 2554162^2 .

It is a super-2 number, since 2×131031402412244² (a number of 29 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 131031402412244.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131031402412241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16378925301527 + ... + 16378925301534.

It is an arithmetic number, because the mean of its divisors is an integer number (38217492370239).

Almost surely, 2^{131031402412244} is an apocalyptic number.

It is an amenable number.

131031402412244 is a deficient number, since it is larger than the sum of its proper divisors (98273551809190).

131031402412244 is a wasteful number, since it uses less digits than its factorization.

131031402412244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32757850603065 (or 32757850603063 counting only the distinct ones).

The product of its (nonzero) digits is 18432, while the sum is 32.

Adding to 131031402412244 its reverse (442214204130131), we get a palindrome (573245606542375).

The spelling of 131031402412244 in words is "one hundred thirty-one trillion, thirty-one billion, four hundred two million, four hundred twelve thousand, two hundred forty-four".