23142323 has 4 divisors (see below), whose sum is σ = 24360360. Its totient is φ = 21924288.

The previous prime is 23142313. The next prime is 23142331. The reversal of 23142323 is 32324132.

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-23142323 is a prime.

It is a super-2 number, since 2×23142323² = 1071134227672658, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23142295 and 23142304.

It is not an unprimeable number, because it can be changed into a prime (23142313) 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, 608990 + ... + 609027.

It is an arithmetic number, because the mean of its divisors is an integer number (6090090).

Almost surely, 2^23142323 is an apocalyptic number.

23142323 is a deficient number, since it is larger than the sum of its proper divisors (1218037).

23142323 is a wasteful number, since it uses less digits than its factorization.

23142323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1218036.

The product of its digits is 864, while the sum is 20.

The square root of 23142323 is about 4810.6468380042. The cubic root of 23142323 is about 284.9720830355.

Adding to 23142323 its reverse (32324132), we get a palindrome (55466455).

The spelling of 23142323 in words is "twenty-three million, one hundred forty-two thousand, three hundred twenty-three".