131423400011423 has 4 divisors (see below), whose sum is σ = 141532892320008. Its totient is φ = 121313907702840.

The previous prime is 131423400011417. The next prime is 131423400011437. The reversal of 131423400011423 is 324110004324131.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-131423400011423 is a prime.

It is a super-2 number, since 2×131423400011423² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131423490011423) 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, 5054746154273 + ... + 5054746154298.

It is an arithmetic number, because the mean of its divisors is an integer number (35383223080002).

Almost surely, 2^{131423400011423} is an apocalyptic number.

131423400011423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131423400011423 is a deficient number, since it is larger than the sum of its proper divisors (10109492308585).

131423400011423 is a wasteful number, since it uses less digits than its factorization.

131423400011423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10109492308584.

The product of its (nonzero) digits is 6912, while the sum is 29.

Adding to 131423400011423 its reverse (324110004324131), we get a palindrome (455533404335554).

The spelling of 131423400011423 in words is "one hundred thirty-one trillion, four hundred twenty-three billion, four hundred million, eleven thousand, four hundred twenty-three".