1303000320 has 72 divisors (see below), whose sum is σ = 4161469536. Its totient is φ = 347465728.

The previous prime is 1303000313. The next prime is 1303000331. The reversal of 1303000320 is 230003031.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 1303000296 and 1303000305.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 165822 + ... + 173501.

It is an arithmetic number, because the mean of its divisors is an integer number (57798188).

Almost surely, 2^1303000320 is an apocalyptic number.

1303000320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1303000320 is an abundant number, since it is smaller than the sum of its proper divisors (2858469216).

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

1303000320 is an equidigital number, since it uses as much as digits as its factorization.

1303000320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 339347 (or 339333 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 12.

The square root of 1303000320 is about 36097.0957280499. The cubic root of 1303000320 is about 1092.2318604928.

Adding to 1303000320 its reverse (230003031), we get a palindrome (1533003351).

The spelling of 1303000320 in words is "one billion, three hundred three million, three hundred twenty", and thus it is an aban number.