23113213 has 4 divisors (see below), whose sum is σ = 23173020. Its totient is φ = 23053408.

The previous prime is 23113201. The next prime is 23113219. The reversal of 23113213 is 31231132.

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 11573604 + 11539609 = 3402^2 + 3397^2 .

It is a cyclic number.

It is not a de Polignac number, because 23113213 - 2¹³ = 23105021 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 (23113219) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 29320 + ... + 30097.

It is an arithmetic number, because the mean of its divisors is an integer number (5793255).

Almost surely, 2^23113213 is an apocalyptic number.

It is an amenable number.

23113213 is a deficient number, since it is larger than the sum of its proper divisors (59807).

23113213 is an equidigital number, since it uses as much as digits as its factorization.

23113213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59806.

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

The square root of 23113213 is about 4807.6203053070. The cubic root of 23113213 is about 284.8525470955.

Adding to 23113213 its reverse (31231132), we get a palindrome (54344345).

The spelling of 23113213 in words is "twenty-three million, one hundred thirteen thousand, two hundred thirteen".