234423523 has 4 divisors (see below), whose sum is σ = 248213160. Its totient is φ = 220633888.

The previous prime is 234423509. The next prime is 234423529. The reversal of 234423523 is 325324432.

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

It is not a de Polignac number, because 234423523 - 2²⁵ = 200869091 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 234423491 and 234423500.

It is not an unprimeable number, because it can be changed into a prime (234423529) 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, 6894793 + ... + 6894826.

It is an arithmetic number, because the mean of its divisors is an integer number (62053290).

Almost surely, 2^234423523 is an apocalyptic number.

234423523 is a deficient number, since it is larger than the sum of its proper divisors (13789637).

234423523 is a wasteful number, since it uses less digits than its factorization.

234423523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13789636.

The product of its digits is 17280, while the sum is 28.

The square root of 234423523 is about 15310.8955649237. The cubic root of 234423523 is about 616.5955642719.

Adding to 234423523 its reverse (325324432), we get a palindrome (559747955).

Subtracting 234423523 from its reverse (325324432), we obtain a palindrome (90900909).

The spelling of 234423523 in words is "two hundred thirty-four million, four hundred twenty-three thousand, five hundred twenty-three".