1330021313 has 2 divisors, whose sum is σ = 1330021314. Its totient is φ = 1330021312.

The previous prime is 1330021309. The next prime is 1330021321. The reversal of 1330021313 is 3131200331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 671431744 + 658589569 = 25912^2 + 25663^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330021313 - 2² = 1330021309 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1330021291 and 1330021300.

It is not a weakly prime, because it can be changed into another prime (1330021013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665010656 + 665010657.

It is an arithmetic number, because the mean of its divisors is an integer number (665010657).

Almost surely, 2^1330021313 is an apocalyptic number.

It is an amenable number.

1330021313 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330021313 is an equidigital number, since it uses as much as digits as its factorization.

1330021313 is an evil number, because the sum of its binary digits is even.

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

The square root of 1330021313 is about 36469.4572622078. The cubic root of 1330021313 is about 1099.7303231474.

Adding to 1330021313 its reverse (3131200331), we get a palindrome (4461221644).

The spelling of 1330021313 in words is "one billion, three hundred thirty million, twenty-one thousand, three hundred thirteen".