131404023 has 12 divisors (see below), whose sum is σ = 192093720. Its totient is φ = 86546736.

The previous prime is 131403977. The next prime is 131404069. The reversal of 131404023 is 320404131.

It is an interprime number because it is at equal distance from previous prime (131403977) and next prime (131404069).

It is a de Polignac number, because none of the positive numbers 2^k-131404023 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 131403987 and 131404005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131404073) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 87208 + ... + 88701.

It is an arithmetic number, because the mean of its divisors is an integer number (16007810).

Almost surely, 2^131404023 is an apocalyptic number.

131404023 is a deficient number, since it is larger than the sum of its proper divisors (60689697).

131404023 is a wasteful number, since it uses less digits than its factorization.

131404023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 175998 (or 175995 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 131404023 is about 11463.1593812526. The cubic root of 131404023 is about 508.3968923363.

Adding to 131404023 its reverse (320404131), we get a palindrome (451808154).

The spelling of 131404023 in words is "one hundred thirty-one million, four hundred four thousand, twenty-three".