23313221320 has 32 divisors (see below), whose sum is σ = 55540323000. Its totient is φ = 8776741888.

The previous prime is 23313221287. The next prime is 23313221359. The reversal of 23313221320 is 2312231332.

It can be written as a sum of positive squares in 4 ways, for example, as 22790733156 + 522488164 = 150966^2 + 22858^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23313221291 and 23313221300.

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 7 ways as a sum of consecutive naturals, for example, 17141395 + ... + 17142754.

Almost surely, 2^23313221320 is an apocalyptic number.

23313221320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23313221320 is an abundant number, since it is smaller than the sum of its proper divisors (32227101680).

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

23313221320 is a wasteful number, since it uses less digits than its factorization.

23313221320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34284177 (or 34284173 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 23313221320 its reverse (2312231332), we get a palindrome (25625452652).

It can be divided in two parts, 233132 and 21320, that added together give a palindrome (254452).

The spelling of 23313221320 in words is "twenty-three billion, three hundred thirteen million, two hundred twenty-one thousand, three hundred twenty".