1303103320 has 64 divisors (see below), whose sum is σ = 2977884000. Its totient is φ = 513128448.

The previous prime is 1303103309. The next prime is 1303103381. The reversal of 1303103320 is 233013031.

It is a junction number, because it is equal to n+sod(n) for n = 1303103294 and 1303103303.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290976 + ... + 1291984.

Almost surely, 2^1303103320 is an apocalyptic number.

1303103320 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 1303103320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1488942000).

1303103320 is an abundant number, since it is smaller than the sum of its proper divisors (1674780680).

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

1303103320 is a wasteful number, since it uses less digits than its factorization.

1303103320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492 (or 1488 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 1303103320 is about 36098.5224074338. The cubic root of 1303103320 is about 1092.2606394362.

Adding to 1303103320 its reverse (233013031), we get a palindrome (1536116351).

The spelling of 1303103320 in words is "one billion, three hundred three million, one hundred three thousand, three hundred twenty".