1320102961 has 2 divisors, whose sum is σ = 1320102962. Its totient is φ = 1320102960.

The previous prime is 1320102937. The next prime is 1320103007. The reversal of 1320102961 is 1692010231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 972504225 + 347598736 = 31185^2 + 18644^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320102961 is a prime.

It is not a weakly prime, because it can be changed into another prime (1320102911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660051480 + 660051481.

It is an arithmetic number, because the mean of its divisors is an integer number (660051481).

Almost surely, 2^1320102961 is an apocalyptic number.

It is an amenable number.

1320102961 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320102961 is an equidigital number, since it uses as much as digits as its factorization.

1320102961 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 25.

The square root of 1320102961 is about 36333.2211756679. The cubic root of 1320102961 is about 1096.9898310161.

The spelling of 1320102961 in words is "one billion, three hundred twenty million, one hundred two thousand, nine hundred sixty-one".