131401423 has 4 divisors (see below), whose sum is σ = 131514808. Its totient is φ = 131288040.

The previous prime is 131401409. The next prime is 131401429. The reversal of 131401423 is 324104131.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 324104131 = 13 ⋅24931087.

It is a cyclic number.

It is not a de Polignac number, because 131401423 - 2²¹ = 129304271 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 131401423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131401429) 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, 54936 + ... + 57277.

It is an arithmetic number, because the mean of its divisors is an integer number (32878702).

Almost surely, 2^131401423 is an apocalyptic number.

131401423 is a deficient number, since it is larger than the sum of its proper divisors (113385).

131401423 is a wasteful number, since it uses less digits than its factorization.

131401423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 113384.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 131401423 is about 11463.0459739111. The cubic root of 131401423 is about 508.3935392156.

Adding to 131401423 its reverse (324104131), we get a palindrome (455505554).

The spelling of 131401423 in words is "one hundred thirty-one million, four hundred one thousand, four hundred twenty-three".