12303303013220 has 192 divisors, whose sum is σ = 28576225379520. Its totient is φ = 4429740441600.

The previous prime is 12303303013201. The next prime is 12303303013279. The reversal of 12303303013220 is 2231030330321.

It can be written as a sum of positive squares in 32 ways, for example, as 11719900352356 + 583402660864 = 3423434^2 + 763808^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1336003976 + ... + 1336013184.

It is an arithmetic number, because the mean of its divisors is an integer number (148834507185).

Almost surely, 2^{12303303013220} is an apocalyptic number.

12303303013220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12303303013220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (14288112689760).

12303303013220 is an abundant number, since it is smaller than the sum of its proper divisors (16272922366300).

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

12303303013220 is a wasteful number, since it uses less digits than its factorization.

12303303013220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11074 (or 11072 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 12303303013220 its reverse (2231030330321), we get a palindrome (14534333343541).

The spelling of 12303303013220 in words is "twelve trillion, three hundred three billion, three hundred three million, thirteen thousand, two hundred twenty".