23400300221 has 4 divisors (see below), whose sum is σ = 23503385472. Its totient is φ = 23297214972.

The previous prime is 23400300197. The next prime is 23400300229. The reversal of 23400300221 is 12200300432.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23400300221 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23400300221.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23400300229) 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, 51542285 + ... + 51542738.

It is an arithmetic number, because the mean of its divisors is an integer number (5875846368).

Almost surely, 2^23400300221 is an apocalyptic number.

It is an amenable number.

23400300221 is a deficient number, since it is larger than the sum of its proper divisors (103085251).

23400300221 is a wasteful number, since it uses less digits than its factorization.

23400300221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 103085250.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 23400300221 its reverse (12200300432), we get a palindrome (35600600653).

The spelling of 23400300221 in words is "twenty-three billion, four hundred million, three hundred thousand, two hundred twenty-one".