23420422100 has 108 divisors (see below), whose sum is σ = 52338212640. Its totient is φ = 9094982400.

The previous prime is 23420422093. The next prime is 23420422141. The reversal of 23420422100 is 122402432.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 37835591 + ... + 37836209.

It is an arithmetic number, because the mean of its divisors is an integer number (484613080).

Almost surely, 2^23420422100 is an apocalyptic number.

23420422100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 23420422100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (26169106320).

23420422100 is an abundant number, since it is smaller than the sum of its proper divisors (28917790540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23420422100 is a wasteful number, since it uses less digits than its factorization.

23420422100 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 850 (or 770 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 20.

Adding to 23420422100 its reverse (122402432), we get a palindrome (23542824532).

The spelling of 23420422100 in words is "twenty-three billion, four hundred twenty million, four hundred twenty-two thousand, one hundred".