131343214231420 has 96 divisors (see below), whose sum is σ = 279308737886976. Its totient is φ = 51876246681600.

The previous prime is 131343214231387. The next prime is 131343214231433. The reversal of 131343214231420 is 24132412343131.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1791064155 + ... + 1791137485.

It is an arithmetic number, because the mean of its divisors is an integer number (2909466019656).

Almost surely, 2^{131343214231420} is an apocalyptic number.

131343214231420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343214231420 is an abundant number, since it is smaller than the sum of its proper divisors (147965523655556).

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

131343214231420 is a wasteful number, since it uses less digits than its factorization.

131343214231420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76171 (or 76169 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 34.

Adding to 131343214231420 its reverse (24132412343131), we get a palindrome (155475626574551).

The spelling of 131343214231420 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred fourteen million, two hundred thirty-one thousand, four hundred twenty".