23030304220 has 96 divisors (see below), whose sum is σ = 60379038720. Its totient is φ = 7168573440.

The previous prime is 23030304197. The next prime is 23030304229. The reversal of 23030304220 is 2240303032.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23030304229) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1174537 + ... + 1193983.

It is an arithmetic number, because the mean of its divisors is an integer number (628948320).

Almost surely, 2^23030304220 is an apocalyptic number.

23030304220 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 23030304220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (30189519360).

23030304220 is an abundant number, since it is smaller than the sum of its proper divisors (37348734500).

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

23030304220 is a wasteful number, since it uses less digits than its factorization.

23030304220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20243 (or 20241 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 19.

Adding to 23030304220 its reverse (2240303032), we get a palindrome (25270607252).

The spelling of 23030304220 in words is "twenty-three billion, thirty million, three hundred four thousand, two hundred twenty".