1330220231 has 2 divisors, whose sum is σ = 1330220232. Its totient is φ = 1330220230.

The previous prime is 1330220209. The next prime is 1330220251. The reversal of 1330220231 is 1320220331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1330220231 is a prime.

It is a super-2 number, since 2×1330220231² = 3538971725923386722, which contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330220251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665110115 + 665110116.

It is an arithmetic number, because the mean of its divisors is an integer number (665110116).

Almost surely, 2^1330220231 is an apocalyptic number.

1330220231 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330220231 is an equidigital number, since it uses as much as digits as its factorization.

1330220231 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 1330220231 is about 36472.1843464304. The cubic root of 1330220231 is about 1099.7851456402.

Adding to 1330220231 its reverse (1320220331), we get a palindrome (2650440562).

It can be divided in two parts, 13302 and 20231, that added together give a palindrome (33533).

The spelling of 1330220231 in words is "one billion, three hundred thirty million, two hundred twenty thousand, two hundred thirty-one".