1303303323 has 24 divisors (see below), whose sum is σ = 2031078720. Its totient is φ = 741197520.

The previous prime is 1303303319. The next prime is 1303303327. The reversal of 1303303323 is 3233033031.

It is an interprime number because it is at equal distance from previous prime (1303303319) and next prime (1303303327).

It is not a de Polignac number, because 1303303323 - 2² = 1303303319 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a self number, because there is not a number n which added to its sum of digits gives 1303303323.

It is not an unprimeable number, because it can be changed into a prime (1303303327) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 10008 + ... + 52026.

It is an arithmetic number, because the mean of its divisors is an integer number (84628280).

Almost surely, 2^1303303323 is an apocalyptic number.

1303303323 is a deficient number, since it is larger than the sum of its proper divisors (727775397).

1303303323 is a wasteful number, since it uses less digits than its factorization.

1303303323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42247 (or 42240 counting only the distinct ones).

The product of its (nonzero) digits is 1458, while the sum is 21.

The square root of 1303303323 is about 36101.2925391876. The cubic root of 1303303323 is about 1092.3165173870.

Adding to 1303303323 its reverse (3233033031), we get a palindrome (4536336354).

The spelling of 1303303323 in words is "one billion, three hundred three million, three hundred three thousand, three hundred twenty-three".