23220442430 has 32 divisors (see below), whose sum is σ = 43273301760. Its totient is φ = 8961845760.

The previous prime is 23220442411. The next prime is 23220442463. The reversal of 23220442430 is 3424402232.

It is a happy number.

23220442430 is digitally balanced in base 5, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 23220442430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6665 + ... + 215604.

It is an arithmetic number, because the mean of its divisors is an integer number (1352290680).

Almost surely, 2^23220442430 is an apocalyptic number.

23220442430 is a deficient number, since it is larger than the sum of its proper divisors (20052859330).

23220442430 is a wasteful number, since it uses less digits than its factorization.

23220442430 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222644.

The product of its (nonzero) digits is 9216, while the sum is 26.

Adding to 23220442430 its reverse (3424402232), we get a palindrome (26644844662).

The spelling of 23220442430 in words is "twenty-three billion, two hundred twenty million, four hundred forty-two thousand, four hundred thirty".