23213263 has 4 divisors (see below), whose sum is σ = 23228640. Its totient is φ = 23197888.

The previous prime is 23213261. The next prime is 23213273. The reversal of 23213263 is 36231232.

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

It is a cyclic number.

It is not a de Polignac number, because 23213263 - 2¹ = 23213261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23213261) 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 3 ways as a sum of consecutive naturals, for example, 5143 + ... + 8536.

It is an arithmetic number, because the mean of its divisors is an integer number (5807160).

Almost surely, 2^23213263 is an apocalyptic number.

23213263 is a deficient number, since it is larger than the sum of its proper divisors (15377).

23213263 is a wasteful number, since it uses less digits than its factorization.

23213263 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15376.

The product of its digits is 1296, while the sum is 22.

The square root of 23213263 is about 4818.0144250511. The cubic root of 23213263 is about 285.2629685297.

Adding to 23213263 its reverse (36231232), we get a palindrome (59444495).

The spelling of 23213263 in words is "twenty-three million, two hundred thirteen thousand, two hundred sixty-three".