23140323 has 20 divisors (see below), whose sum is σ = 36073488. Its totient is φ = 14754960.

The previous prime is 23140319. The next prime is 23140357. The reversal of 23140323 is 32304132.

It is not a de Polignac number, because 23140323 - 2² = 23140319 is a prime.

It is a hoax number, since the sum of its digits (18) coincides with the sum of the digits of its distinct prime factors.

It is a junction number, because it is equal to n+sod(n) for n = 23140296 and 23140305.

It is not an unprimeable number, because it can be changed into a prime (23140123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 4348 + ... + 8073.

Almost surely, 2^23140323 is an apocalyptic number.

23140323 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

23140323 is a deficient number, since it is larger than the sum of its proper divisors (12933165).

23140323 is a wasteful number, since it uses less digits than its factorization.

23140323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12456 (or 12447 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 23140323 is about 4810.4389612591. The cubic root of 23140323 is about 284.9638735372.

Adding to 23140323 its reverse (32304132), we get a palindrome (55444455).

The spelling of 23140323 in words is "twenty-three million, one hundred forty thousand, three hundred twenty-three".