23321645234203 has 4 divisors (see below), whose sum is σ = 23817850452000. Its totient is φ = 22825440016408.

The previous prime is 23321645234191. The next prime is 23321645234227. The reversal of 23321645234203 is 30243254612332.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321645234203 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23321645237203) 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, 248102608828 + ... + 248102608921.

It is an arithmetic number, because the mean of its divisors is an integer number (5954462613000).

Almost surely, 2^{23321645234203} is an apocalyptic number.

23321645234203 is a deficient number, since it is larger than the sum of its proper divisors (496205217797).

23321645234203 is an equidigital number, since it uses as much as digits as its factorization.

23321645234203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 496205217796.

The product of its (nonzero) digits is 622080, while the sum is 40.

Adding to 23321645234203 its reverse (30243254612332), we get a palindrome (53564899846535).

The spelling of 23321645234203 in words is "twenty-three trillion, three hundred twenty-one billion, six hundred forty-five million, two hundred thirty-four thousand, two hundred three".