235531423 has 4 divisors (see below), whose sum is σ = 237959680. Its totient is φ = 233103168.

The previous prime is 235531409. The next prime is 235531453. The reversal of 235531423 is 324135532.

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 235531423 - 2¹³ = 235523231 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 235531391 and 235531400.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (235531403) 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, 1213983 + ... + 1214176.

It is an arithmetic number, because the mean of its divisors is an integer number (59489920).

Almost surely, 2^235531423 is an apocalyptic number.

235531423 is a deficient number, since it is larger than the sum of its proper divisors (2428257).

235531423 is an equidigital number, since it uses as much as digits as its factorization.

235531423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2428256.

The product of its digits is 10800, while the sum is 28.

The square root of 235531423 is about 15347.0330357369. The cubic root of 235531423 is about 617.5653942447.

Adding to 235531423 its reverse (324135532), we get a palindrome (559666955).

It can be divided in two parts, 23553 and 1423, that added together give a triangular number (24976 = T₂₂₃).

The spelling of 235531423 in words is "two hundred thirty-five million, five hundred thirty-one thousand, four hundred twenty-three".