1323110420 has 48 divisors (see below), whose sum is σ = 2920337280. Its totient is φ = 502567296.

The previous prime is 1323110389. The next prime is 1323110431. The reversal of 1323110420 is 240113231.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 53594 + ... + 74286.

It is an arithmetic number, because the mean of its divisors is an integer number (60840360).

Almost surely, 2^1323110420 is an apocalyptic number.

1323110420 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 1323110420, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1460168640).

1323110420 is an abundant number, since it is smaller than the sum of its proper divisors (1597226860).

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

1323110420 is a wasteful number, since it uses less digits than its factorization.

1323110420 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20864 (or 20862 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 1323110420 is about 36374.5848086270. The cubic root of 1323110420 is about 1097.8222533921.

Adding to 1323110420 its reverse (240113231), we get a palindrome (1563223651).

The spelling of 1323110420 in words is "one billion, three hundred twenty-three million, one hundred ten thousand, four hundred twenty".