131343231210420 has 24 divisors (see below), whose sum is σ = 367761047389344. Its totient is φ = 35024861656096.

The previous prime is 131343231210419. The next prime is 131343231210427. The reversal of 131343231210420 is 24012132343131.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343231210427) 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, 1094526926694 + ... + 1094526926813.

It is an arithmetic number, because the mean of its divisors is an integer number (15323376974556).

Almost surely, 2^{131343231210420} is an apocalyptic number.

131343231210420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131343231210420 is an abundant number, since it is smaller than the sum of its proper divisors (236417816178924).

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

131343231210420 is a wasteful number, since it uses less digits than its factorization.

131343231210420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2189053853519 (or 2189053853517 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 131343231210420 its reverse (24012132343131), we get a palindrome (155355363553551).

The spelling of 131343231210420 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-one million, two hundred ten thousand, four hundred twenty".