220312123320 has 32 divisors (see below), whose sum is σ = 660936370320. Its totient is φ = 58749899520.

The previous prime is 220312123313. The next prime is 220312123331. The reversal of 220312123320 is 23321213022.

It is a happy number.

220312123320 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 917967061 + ... + 917967300.

Almost surely, 2^220312123320 is an apocalyptic number.

220312123320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220312123320 is an abundant number, since it is smaller than the sum of its proper divisors (440624247000).

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

220312123320 is a wasteful number, since it uses less digits than its factorization.

220312123320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1835934375 (or 1835934371 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 220312123320 its reverse (23321213022), we get a palindrome (243633336342).

The spelling of 220312123320 in words is "two hundred twenty billion, three hundred twelve million, one hundred twenty-three thousand, three hundred twenty".