23221113 has 4 divisors (see below), whose sum is σ = 30961488. Its totient is φ = 15480740.

The previous prime is 23221109. The next prime is 23221117. The reversal of 23221113 is 31112232.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (23221109) and next prime (23221117).

It is a cyclic number.

It is not a de Polignac number, because 23221113 - 2² = 23221109 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23221092 and 23221101.

It is not an unprimeable number, because it can be changed into a prime (23221117) 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, 3870183 + ... + 3870188.

It is an arithmetic number, because the mean of its divisors is an integer number (7740372).

Almost surely, 2^23221113 is an apocalyptic number.

It is an amenable number.

23221113 is a deficient number, since it is larger than the sum of its proper divisors (7740375).

23221113 is an equidigital number, since it uses as much as digits as its factorization.

23221113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7740374.

The product of its digits is 72, while the sum is 15.

The square root of 23221113 is about 4818.8290071344. The cubic root of 23221113 is about 285.2951205790.

Adding to 23221113 its reverse (31112232), we get a palindrome (54333345).

The spelling of 23221113 in words is "twenty-three million, two hundred twenty-one thousand, one hundred thirteen".