23220143100 has 576 divisors, whose sum is σ = 94513950720. Its totient is φ = 4750099200.

The previous prime is 23220143077. The next prime is 23220143113. The reversal of 23220143100 is 134102232.

23220143100 is a `hidden beast` number, since 2 + 32 + 201 + 431 + 0 + 0 = 666.

It is a super-2 number, since 2×23220143100² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 13928467 + ... + 13930133.

It is an arithmetic number, because the mean of its divisors is an integer number (164086720).

Almost surely, 2^23220143100 is an apocalyptic number.

23220143100 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 23220143100, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (47256975360).

23220143100 is an abundant number, since it is smaller than the sum of its proper divisors (71293807620).

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

23220143100 is a wasteful number, since it uses less digits than its factorization.

23220143100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1775 (or 1762 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 23220143100 its reverse (134102232), we get a palindrome (23354245332).

The spelling of 23220143100 in words is "twenty-three billion, two hundred twenty million, one hundred forty-three thousand, one hundred".