131130022442423 has 4 divisors (see below), whose sum is σ = 134328315672768. Its totient is φ = 127931729212080.

The previous prime is 131130022442369. The next prime is 131130022442443. The reversal of 131130022442423 is 324244220031131.

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 131130022442423 - 2⁴⁰ = 130030510814647 is a prime.

It is a super-2 number, since 2×131130022442423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 131130022442423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131130022442443) 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, 1599146615111 + ... + 1599146615192.

It is an arithmetic number, because the mean of its divisors is an integer number (33582078918192).

Almost surely, 2^{131130022442423} is an apocalyptic number.

131130022442423 is a deficient number, since it is larger than the sum of its proper divisors (3198293230345).

131130022442423 is an equidigital number, since it uses as much as digits as its factorization.

131130022442423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3198293230344.

The product of its (nonzero) digits is 27648, while the sum is 32.

Adding to 131130022442423 its reverse (324244220031131), we get a palindrome (455374242473554).

The spelling of 131130022442423 in words is "one hundred thirty-one trillion, one hundred thirty billion, twenty-two million, four hundred forty-two thousand, four hundred twenty-three".