1303212231 has 12 divisors (see below), whose sum is σ = 1993148352. Its totient is φ = 817701696.

The previous prime is 1303212217. The next prime is 1303212233. The reversal of 1303212231 is 1322123031.

It is not a de Polignac number, because 1303212231 - 2⁵ = 1303212199 is a prime.

It is a super-2 number, since 2×1303212231² = 3396724238055994722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1303212233) by changing a digit.

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 11 ways as a sum of consecutive naturals, for example, 4258711 + ... + 4259016.

It is an arithmetic number, because the mean of its divisors is an integer number (166095696).

Almost surely, 2^1303212231 is an apocalyptic number.

1303212231 is a deficient number, since it is larger than the sum of its proper divisors (689936121).

1303212231 is a wasteful number, since it uses less digits than its factorization.

1303212231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8517750 (or 8517747 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

The square root of 1303212231 is about 36100.0309002638. The cubic root of 1303212231 is about 1092.2910683062.

Adding to 1303212231 its reverse (1322123031), we get a palindrome (2625335262).

The spelling of 1303212231 in words is "one billion, three hundred three million, two hundred twelve thousand, two hundred thirty-one".