1303223503 has 8 divisors (see below), whose sum is σ = 1317506256. Its totient is φ = 1288968000.

The previous prime is 1303223497. The next prime is 1303223527. The reversal of 1303223503 is 3053223031.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1303223503 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303223533) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 98088 + ... + 110578.

It is an arithmetic number, because the mean of its divisors is an integer number (164688282).

Almost surely, 2^1303223503 is an apocalyptic number.

1303223503 is a deficient number, since it is larger than the sum of its proper divisors (14282753).

1303223503 is a wasteful number, since it uses less digits than its factorization.

1303223503 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13625.

The product of its (nonzero) digits is 1620, while the sum is 22.

The square root of 1303223503 is about 36100.1870216762. The cubic root of 1303223503 is about 1092.2942175169.

Adding to 1303223503 its reverse (3053223031), we get a palindrome (4356446534).

The spelling of 1303223503 in words is "one billion, three hundred three million, two hundred twenty-three thousand, five hundred three".