23226643213 has 4 divisors (see below), whose sum is σ = 23793146748. Its totient is φ = 22660139680.

The previous prime is 23226643211. The next prime is 23226643243. The reversal of 23226643213 is 31234662232.

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 5824284489 + 17402358724 = 76317^2 + 131918^2 .

It is a cyclic number.

It is not a de Polignac number, because 23226643213 - 2¹ = 23226643211 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 (23226643211) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 283251706 + ... + 283251787.

It is an arithmetic number, because the mean of its divisors is an integer number (5948286687).

Almost surely, 2^23226643213 is an apocalyptic number.

It is an amenable number.

23226643213 is a deficient number, since it is larger than the sum of its proper divisors (566503535).

23226643213 is an equidigital number, since it uses as much as digits as its factorization.

23226643213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566503534.

The product of its digits is 62208, while the sum is 34.

The spelling of 23226643213 in words is "twenty-three billion, two hundred twenty-six million, six hundred forty-three thousand, two hundred thirteen".