23512423 has 4 divisors (see below), whose sum is σ = 25649928. Its totient is φ = 21374920.

The previous prime is 23512403. The next prime is 23512439. The reversal of 23512423 is 32421532.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23512423 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23512394 and 23512403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23512403) 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, 1068736 + ... + 1068757.

It is an arithmetic number, because the mean of its divisors is an integer number (6412482).

Almost surely, 2^23512423 is an apocalyptic number.

23512423 is a deficient number, since it is larger than the sum of its proper divisors (2137505).

23512423 is a wasteful number, since it uses less digits than its factorization.

23512423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2137504.

The product of its digits is 1440, while the sum is 22.

The square root of 23512423 is about 4848.9610227347. The cubic root of 23512423 is about 286.4831800088.

Adding to 23512423 its reverse (32421532), we get a palindrome (55933955).

It can be divided in two parts, 2351 and 2423, that added together give a palindrome (4774).

The spelling of 23512423 in words is "twenty-three million, five hundred twelve thousand, four hundred twenty-three".