131343231241423 has 4 divisors (see below), whose sum is σ = 134893048302040. Its totient is φ = 127793414180808.

The previous prime is 131343231241367. The next prime is 131343231241427. The reversal of 131343231241423 is 324142132343131.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 131343231241423 - 2³³ = 131334641306831 is a prime.

It is a super-2 number, since 2×131343231241423² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (37), and also a Moran number because the ratio is a prime number: 3549817060579 = 131343231241423 / (1 + 3 + 1 + 3 + 4 + 3 + 2 + 3 + 1 + 2 + 4 + 1 + 4 + 2 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131343231241427) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1774908530253 + ... + 1774908530326.

It is an arithmetic number, because the mean of its divisors is an integer number (33723262075510).

Almost surely, 2^{131343231241423} is an apocalyptic number.

131343231241423 is a deficient number, since it is larger than the sum of its proper divisors (3549817060617).

131343231241423 is an equidigital number, since it uses as much as digits as its factorization.

131343231241423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3549817060616.

The product of its digits is 124416, while the sum is 37.

Adding to 131343231241423 its reverse (324142132343131), we get a palindrome (455485363584554).

The spelling of 131343231241423 in words is "one hundred thirty-one trillion, three hundred forty-three billion, two hundred thirty-one million, two hundred forty-one thousand, four hundred twenty-three".