1330120320 has 64 divisors (see below), whose sum is σ = 4239764640. Its totient is φ = 354698240.

The previous prime is 1330120279. The next prime is 1330120321. The reversal of 1330120320 is 230210331.

It is a tau number, because it is divible by the number of its divisors (64).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1330120320.

It is not an unprimeable number, because it can be changed into a prime (1330120321) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 344466 + ... + 348305.

Almost surely, 2^1330120320 is an apocalyptic number.

1330120320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1330120320 is an abundant number, since it is smaller than the sum of its proper divisors (2909644320).

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

1330120320 is an equidigital number, since it uses as much as digits as its factorization.

1330120320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 692793 (or 692781 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1330120320 is about 36470.8146330734. The cubic root of 1330120320 is about 1099.7576105043.

Adding to 1330120320 its reverse (230210331), we get a palindrome (1560330651).

The spelling of 1330120320 in words is "one billion, three hundred thirty million, one hundred twenty thousand, three hundred twenty".