23003023220 has 24 divisors (see below), whose sum is σ = 48401274600. Its totient is φ = 9183128192.

The previous prime is 23003023177. The next prime is 23003023259. The reversal of 23003023220 is 2232030032.

It can be written as a sum of positive squares in 4 ways, for example, as 11847016336 + 11156006884 = 108844^2 + 105622^2 .

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1119635 + ... + 1139994.

It is an arithmetic number, because the mean of its divisors is an integer number (2016719775).

Almost surely, 2^23003023220 is an apocalyptic number.

23003023220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23003023220 is an abundant number, since it is smaller than the sum of its proper divisors (25398251380).

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

23003023220 is a wasteful number, since it uses less digits than its factorization.

23003023220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2260147 (or 2260145 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 17.

Adding to 23003023220 its reverse (2232030032), we get a palindrome (25235053252).

The spelling of 23003023220 in words is "twenty-three billion, three million, twenty-three thousand, two hundred twenty".