1301302320 has 80 divisors (see below), whose sum is σ = 4040500320. Its totient is φ = 346458112.

The previous prime is 1301302273. The next prime is 1301302339. The reversal of 1301302320 is 232031031.

It is a tau number, because it is divible by the number of its divisors (80).

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 1301302320.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 158476 + ... + 166484.

It is an arithmetic number, because the mean of its divisors is an integer number (50506254).

Almost surely, 2^1301302320 is an apocalyptic number.

1301302320 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 1301302320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2020250160).

1301302320 is an abundant number, since it is smaller than the sum of its proper divisors (2739198000).

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

1301302320 is a wasteful number, since it uses less digits than its factorization.

1301302320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8702 (or 8696 counting only the distinct ones).

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

The square root of 1301302320 is about 36073.5681628530. The cubic root of 1301302320 is about 1091.7572082962.

Adding to 1301302320 its reverse (232031031), we get a palindrome (1533333351).

The spelling of 1301302320 in words is "one billion, three hundred one million, three hundred two thousand, three hundred twenty".