131320423 has 8 divisors (see below), whose sum is σ = 141511328. Its totient is φ = 121142304.

The previous prime is 131320411. The next prime is 131320447. The reversal of 131320423 is 324023131.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 131320423 - 2²⁵ = 97765991 is a prime.

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 131320423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131320403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 36190 + ... + 39652.

It is an arithmetic number, because the mean of its divisors is an integer number (17688916).

Almost surely, 2^131320423 is an apocalyptic number.

131320423 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131320423 is a deficient number, since it is larger than the sum of its proper divisors (10190905).

131320423 is a wasteful number, since it uses less digits than its factorization.

131320423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6393.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 131320423 is about 11459.5123369191. The cubic root of 131320423 is about 508.2890544489.

Adding to 131320423 its reverse (324023131), we get a palindrome (455343554).

It can be divided in two parts, 13132042 and 3, that multiplied together give a triangular number (39396126 = T₈₈₇₆).

The spelling of 131320423 in words is "one hundred thirty-one million, three hundred twenty thousand, four hundred twenty-three".