1330201997 has 2 divisors, whose sum is σ = 1330201998. Its totient is φ = 1330201996.

The previous prime is 1330201993. The next prime is 1330202021. The reversal of 1330201997 is 7991020331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 882921796 + 447280201 = 29714^2 + 21149^2 .

It is a cyclic number.

It is not a de Polignac number, because 1330201997 - 2² = 1330201993 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1330201993) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665100998 + 665100999.

It is an arithmetic number, because the mean of its divisors is an integer number (665100999).

Almost surely, 2^1330201997 is an apocalyptic number.

It is an amenable number.

1330201997 is a deficient number, since it is larger than the sum of its proper divisors (1).

1330201997 is an equidigital number, since it uses as much as digits as its factorization.

1330201997 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 10206, while the sum is 35.

The square root of 1330201997 is about 36471.9343742555. The cubic root of 1330201997 is about 1099.7801205139.

The spelling of 1330201997 in words is "one billion, three hundred thirty million, two hundred one thousand, nine hundred ninety-seven".