1323113420220 has 96 divisors (see below), whose sum is σ = 3796151546880. Its totient is φ = 344145096960.

The previous prime is 1323113420219. The next prime is 1323113420257. The reversal of 1323113420220 is 220243113231.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1498390 + ... + 2211650.

It is an arithmetic number, because the mean of its divisors is an integer number (39543245280).

Almost surely, 2^{1323113420220} is an apocalyptic number.

1323113420220 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 1323113420220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1898075773440).

1323113420220 is an abundant number, since it is smaller than the sum of its proper divisors (2473038126660).

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

1323113420220 is a wasteful number, since it uses less digits than its factorization.

1323113420220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714035 (or 714033 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 1323113420220 its reverse (220243113231), we get a palindrome (1543356533451).

The spelling of 1323113420220 in words is "one trillion, three hundred twenty-three billion, one hundred thirteen million, four hundred twenty thousand, two hundred twenty".