1330231613 has 2 divisors, whose sum is σ = 1330231614. Its totient is φ = 1330231612.

The previous prime is 1330231583. The next prime is 1330231627. The reversal of 1330231613 is 3161320331.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1057420324 + 272811289 = 32518^2 + 16517^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330231613 - 2¹⁶ = 1330166077 is a prime.

It is a super-2 number, since 2×1330231613² = 3539032288449163538, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330231633) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665115806 + 665115807.

It is an arithmetic number, because the mean of its divisors is an integer number (665115807).

Almost surely, 2^1330231613 is an apocalyptic number.

It is an amenable number.

1330231613 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330231613 is an equidigital number, since it uses as much as digits as its factorization.

1330231613 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 972, while the sum is 23.

The square root of 1330231613 is about 36472.3403828161. The cubic root of 1330231613 is about 1099.7882823937.

Adding to 1330231613 its reverse (3161320331), we get a palindrome (4491551944).

The spelling of 1330231613 in words is "one billion, three hundred thirty million, two hundred thirty-one thousand, six hundred thirteen".