1320301320 has 128 divisors (see below), whose sum is σ = 4288032000. Its totient is φ = 323288064.

The previous prime is 1320301313. The next prime is 1320301321. The reversal of 1320301320 is 231030231.

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 1320301320.

It is not an unprimeable number, because it can be changed into a prime (1320301321) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 308314 + ... + 312566.

It is an arithmetic number, because the mean of its divisors is an integer number (33500250).

Almost surely, 2^1320301320 is an apocalyptic number.

1320301320 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 1320301320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2144016000).

1320301320 is an abundant number, since it is smaller than the sum of its proper divisors (2967730680).

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

1320301320 is a wasteful number, since it uses less digits than its factorization.

1320301320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4479 (or 4475 counting only the distinct ones).

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

The square root of 1320301320 is about 36335.9507925691. The cubic root of 1320301320 is about 1097.0447729195.

Adding to 1320301320 its reverse (231030231), we get a palindrome (1551331551).

The spelling of 1320301320 in words is "one billion, three hundred twenty million, three hundred one thousand, three hundred twenty".