1330312231 has 2 divisors, whose sum is σ = 1330312232. Its totient is φ = 1330312230.

The previous prime is 1330312229. The next prime is 1330312289. The reversal of 1330312231 is 1322130331.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1330312231 - 2¹ = 1330312229 is a prime.

It is a super-2 number, since 2×1330312231² = 3539461263896394722, which contains 22 as substring.

Together with 1330312229, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 1330312199 and 1330312208.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330312631) 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 as a sum of consecutive naturals, namely, 665156115 + 665156116.

It is an arithmetic number, because the mean of its divisors is an integer number (665156116).

Almost surely, 2^1330312231 is an apocalyptic number.

1330312231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330312231 is an equidigital number, since it uses as much as digits as its factorization.

1330312231 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1330312231 is about 36473.4455597494. The cubic root of 1330312231 is about 1099.8104993119.

Adding to 1330312231 its reverse (1322130331), we get a palindrome (2652442562).

The spelling of 1330312231 in words is "one billion, three hundred thirty million, three hundred twelve thousand, two hundred thirty-one".