131201142321340 has 96 divisors (see below), whose sum is σ = 339167093368320. Its totient is φ = 41515333284096.

The previous prime is 131201142321331. The next prime is 131201142321397. The reversal of 131201142321340 is 43123241102131.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is a junction number, because it is equal to n+sod(n) for n = 131201142321299 and 131201142321308.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3211119 + ... + 16514041.

It is an arithmetic number, because the mean of its divisors is an integer number (3532990555920).

Almost surely, 2^{131201142321340} is an apocalyptic number.

131201142321340 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131201142321340 is an abundant number, since it is smaller than the sum of its proper divisors (207965951046980).

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

131201142321340 is a wasteful number, since it uses less digits than its factorization.

131201142321340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13308371 (or 13308369 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 28.

Adding to 131201142321340 its reverse (43123241102131), we get a palindrome (174324383423471).

The spelling of 131201142321340 in words is "one hundred thirty-one trillion, two hundred one billion, one hundred forty-two million, three hundred twenty-one thousand, three hundred forty".