23211113 has 4 divisors (see below), whose sum is σ = 23441028. Its totient is φ = 22981200.

The previous prime is 23211101. The next prime is 23211119. The reversal of 23211113 is 31111232.

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

It can be written as a sum of positive squares in 2 ways, for example, as 21641104 + 1570009 = 4652^2 + 1253^2 .

It is a cyclic number.

It is not a de Polignac number, because 23211113 - 2⁸ = 23210857 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23211119) 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 3 ways as a sum of consecutive naturals, for example, 114806 + ... + 115007.

It is an arithmetic number, because the mean of its divisors is an integer number (5860257).

Almost surely, 2^23211113 is an apocalyptic number.

It is an amenable number.

23211113 is a deficient number, since it is larger than the sum of its proper divisors (229915).

23211113 is a wasteful number, since it uses less digits than its factorization.

23211113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 229914.

The product of its digits is 36, while the sum is 14.

The square root of 23211113 is about 4817.7912989253. The cubic root of 23211113 is about 285.2541612899.

Adding to 23211113 its reverse (31111232), we get a palindrome (54322345).

The spelling of 23211113 in words is "twenty-three million, two hundred eleven thousand, one hundred thirteen".