23310321220 has 48 divisors (see below), whose sum is σ = 51874830000. Its totient is φ = 8783022080.

The previous prime is 23310321163. The next prime is 23310321253. The reversal of 23310321220 is 2212301332.

It can be written as a sum of positive squares in 8 ways, for example, as 5662261504 + 17648059716 = 75248^2 + 132846^2 .

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 15 ways as a sum of consecutive naturals, for example, 466345 + ... + 513904.

It is an arithmetic number, because the mean of its divisors is an integer number (1080725625).

Almost surely, 2^23310321220 is an apocalyptic number.

23310321220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23310321220 is an abundant number, since it is smaller than the sum of its proper divisors (28564508780).

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

23310321220 is a wasteful number, since it uses less digits than its factorization.

23310321220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 980328 (or 980326 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 23310321220 its reverse (2212301332), we get a palindrome (25522622552).

The spelling of 23310321220 in words is "twenty-three billion, three hundred ten million, three hundred twenty-one thousand, two hundred twenty".