23513243 has 16 divisors (see below), whose sum is σ = 26040000. Its totient is φ = 21098880.

The previous prime is 23513233. The next prime is 23513249. The reversal of 23513243 is 34231532.

It is a cyclic number.

It is not a de Polignac number, because 23513243 - 2¹⁰ = 23512219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23513249) 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 15 ways as a sum of consecutive naturals, for example, 118058 + ... + 118256.

It is an arithmetic number, because the mean of its divisors is an integer number (1627500).

Almost surely, 2^23513243 is an apocalyptic number.

23513243 is a deficient number, since it is larger than the sum of its proper divisors (2526757).

23513243 is a wasteful number, since it uses less digits than its factorization.

23513243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422.

The product of its digits is 2160, while the sum is 23.

The square root of 23513243 is about 4849.0455761933. The cubic root of 23513243 is about 286.4865103543.

Adding to 23513243 its reverse (34231532), we get a palindrome (57744775).

The spelling of 23513243 in words is "twenty-three million, five hundred thirteen thousand, two hundred forty-three".