23213113 has 12 divisors (see below), whose sum is σ = 29458512. Its totient is φ = 18087720.

The previous prime is 23213087. The next prime is 23213131. The reversal of 23213113 is 31131232.

It is not a de Polignac number, because 23213113 - 2²¹ = 21115961 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23213153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 20995 + ... + 22072.

It is an arithmetic number, because the mean of its divisors is an integer number (2454876).

Almost surely, 2^23213113 is an apocalyptic number.

It is an amenable number.

23213113 is a deficient number, since it is larger than the sum of its proper divisors (6245399).

23213113 is a wasteful number, since it uses less digits than its factorization.

23213113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 43092 (or 43085 counting only the distinct ones).

The product of its digits is 108, while the sum is 16.

The square root of 23213113 is about 4817.9988584474. The cubic root of 23213113 is about 285.2623540888.

Adding to 23213113 its reverse (31131232), we get a palindrome (54344345).

The spelling of 23213113 in words is "twenty-three million, two hundred thirteen thousand, one hundred thirteen".