131423243233420 has 12 divisors (see below), whose sum is σ = 275988810790224. Its totient is φ = 52569297293360.

The previous prime is 131423243233397. The next prime is 131423243233441. The reversal of 131423243233420 is 24332342324131.

It is a self number, because there is not a number n which added to its sum of digits gives 131423243233420.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3285581080816 + ... + 3285581080855.

It is an arithmetic number, because the mean of its divisors is an integer number (22999067565852).

Almost surely, 2^{131423243233420} is an apocalyptic number.

131423243233420 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

131423243233420 is an abundant number, since it is smaller than the sum of its proper divisors (144565567556804).

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

131423243233420 is a wasteful number, since it uses less digits than its factorization.

131423243233420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6571162161680 (or 6571162161678 counting only the distinct ones).

The product of its (nonzero) digits is 248832, while the sum is 37.

Adding to 131423243233420 its reverse (24332342324131), we get a palindrome (155755585557551).

The spelling of 131423243233420 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, two hundred forty-three million, two hundred thirty-three thousand, four hundred twenty".