23220003120 has 80 divisors (see below), whose sum is σ = 72170237952. Its totient is φ = 6175809280.

The previous prime is 23220003049. The next prime is 23220003173. The reversal of 23220003120 is 2130002232.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 23220003120.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34386 + ... + 218225.

Almost surely, 2^23220003120 is an apocalyptic number.

23220003120 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 23220003120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (36085118976).

23220003120 is an abundant number, since it is smaller than the sum of its proper divisors (48950234832).

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

23220003120 is a wasteful number, since it uses less digits than its factorization.

23220003120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 253010 (or 253004 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 23220003120 its reverse (2130002232), we get a palindrome (25350005352).

The spelling of 23220003120 in words is "twenty-three billion, two hundred twenty million, three thousand, one hundred twenty".