1312030303 has 4 divisors (see below), whose sum is σ = 1312104528. Its totient is φ = 1311956080.

The previous prime is 1312030297. The next prime is 1312030367. The reversal of 1312030303 is 3030302131.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1312030303 is a prime.

It is a Duffinian number.

1312030303 is a modest number, since divided by 30303 gives 1312 as remainder.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312030373) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6438 + ... + 51628.

It is an arithmetic number, because the mean of its divisors is an integer number (328026132).

Almost surely, 2^1312030303 is an apocalyptic number.

1312030303 is a deficient number, since it is larger than the sum of its proper divisors (74225).

1312030303 is an equidigital number, since it uses as much as digits as its factorization.

1312030303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 74224.

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

The square root of 1312030303 is about 36221.9588509512. The cubic root of 1312030303 is about 1094.7491632303.

Adding to 1312030303 its reverse (3030302131), we get a palindrome (4342332434).

The spelling of 1312030303 in words is "one billion, three hundred twelve million, thirty thousand, three hundred three".