23215423 has 12 divisors (see below), whose sum is σ = 29164240. Its totient is φ = 18089280.

The previous prime is 23215403. The next prime is 23215459. The reversal of 23215423 is 32451232.

It is not a de Polignac number, because 23215423 - 2¹³ = 23207231 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23215394 and 23215403.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23215403) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 12858 + ... + 14551.

Almost surely, 2^23215423 is an apocalyptic number.

23215423 is a deficient number, since it is larger than the sum of its proper divisors (5948817).

23215423 is a wasteful number, since it uses less digits than its factorization.

23215423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27438 (or 27427 counting only the distinct ones).

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

The square root of 23215423 is about 4818.2385785679. The cubic root of 23215423 is about 285.2718161858.

Adding to 23215423 its reverse (32451232), we get a palindrome (55666655).

It can be divided in two parts, 2321 and 5423, that added together give a square (7744 = 88²).

The spelling of 23215423 in words is "twenty-three million, two hundred fifteen thousand, four hundred twenty-three".