23204343213 has 10 divisors (see below), whose sum is σ = 34663278254. Its totient is φ = 15469562088.

The previous prime is 23204343181. The next prime is 23204343223. The reversal of 23204343213 is 31234340232.

23204343213 is a `hidden beast` number, since 23 + 204 + 3 + 432 + 1 + 3 = 666.

It can be written as a sum of positive squares in only one way, i.e., 20845006884 + 2359336329 = 144378^2 + 48573^2 .

It is not a de Polignac number, because 23204343213 - 2⁵ = 23204343181 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23204343223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 143236606 + ... + 143236767.

Almost surely, 2^23204343213 is an apocalyptic number.

It is an amenable number.

23204343213 is a deficient number, since it is larger than the sum of its proper divisors (11458935041).

23204343213 is an equidigital number, since it uses as much as digits as its factorization.

23204343213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286473385 (or 286473376 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 23204343213 its reverse (31234340232), we get a palindrome (54438683445).

The spelling of 23204343213 in words is "twenty-three billion, two hundred four million, three hundred forty-three thousand, two hundred thirteen".