1303310231 has 4 divisors (see below), whose sum is σ = 1305288600. Its totient is φ = 1301331864.

The previous prime is 1303310209. The next prime is 1303310233. The reversal of 1303310231 is 1320133031.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1303310231 - 2²² = 1299115927 is a prime.

It is a super-2 number, since 2×1303310231² = 3397235116458546722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303310233) 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, 988196 + ... + 989513.

It is an arithmetic number, because the mean of its divisors is an integer number (326322150).

Almost surely, 2^1303310231 is an apocalyptic number.

1303310231 is a deficient number, since it is larger than the sum of its proper divisors (1978369).

1303310231 is an equidigital number, since it uses as much as digits as its factorization.

1303310231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1978368.

The product of its (nonzero) digits is 162, while the sum is 17.

The square root of 1303310231 is about 36101.3882143056. The cubic root of 1303310231 is about 1092.3184472803.

Adding to 1303310231 its reverse (1320133031), we get a palindrome (2623443262).

The spelling of 1303310231 in words is "one billion, three hundred three million, three hundred ten thousand, two hundred thirty-one".