131231321410144 has 48 divisors (see below), whose sum is σ = 269602625940480. Its totient is φ = 62760979290240.

The previous prime is 131231321410141. The next prime is 131231321410151. The reversal of 131231321410144 is 441014123132131.

It is a super-2 number, since 2×131231321410144² (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 (131231321410141) 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, 22881667 + ... + 28036285.

It is an arithmetic number, because the mean of its divisors is an integer number (5616721373760).

Almost surely, 2^{131231321410144} is an apocalyptic number.

It is an amenable number.

131231321410144 is an abundant number, since it is smaller than the sum of its proper divisors (138371304530336).

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

131231321410144 is a wasteful number, since it uses less digits than its factorization.

131231321410144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5189243 (or 5189235 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 31.

Adding to 131231321410144 its reverse (441014123132131), we get a palindrome (572245444542275).

The spelling of 131231321410144 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, three hundred twenty-one million, four hundred ten thousand, one hundred forty-four".