12320111233220 has 96 divisors (see below), whose sum is σ = 30965231743488. Its totient is φ = 4025797788672.

The previous prime is 12320111233193. The next prime is 12320111233231. The reversal of 12320111233220 is 2233211102321.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6014417 + ... + 7798296.

It is an arithmetic number, because the mean of its divisors is an integer number (322554497328).

Almost surely, 2^{12320111233220} is an apocalyptic number.

12320111233220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12320111233220 is an abundant number, since it is smaller than the sum of its proper divisors (18645120510268).

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

12320111233220 is a wasteful number, since it uses less digits than its factorization.

12320111233220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13813029 (or 13813027 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12320111233220 its reverse (2233211102321), we get a palindrome (14553322335541).

The spelling of 12320111233220 in words is "twelve trillion, three hundred twenty billion, one hundred eleven million, two hundred thirty-three thousand, two hundred twenty".