1320202901 has 2 divisors, whose sum is σ = 1320202902. Its totient is φ = 1320202900.

The previous prime is 1320202889. The next prime is 1320202913. The reversal of 1320202901 is 1092020231.

It is a balanced prime because it is at equal distance from previous prime (1320202889) and next prime (1320202913).

It can be written as a sum of positive squares in only one way, i.e., 968827876 + 351375025 = 31126^2 + 18745^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320202901 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1320202981) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660101450 + 660101451.

It is an arithmetic number, because the mean of its divisors is an integer number (660101451).

Almost surely, 2^1320202901 is an apocalyptic number.

It is an amenable number.

1320202901 is a deficient number, since it is larger than the sum of its proper divisors (1).

1320202901 is an equidigital number, since it uses as much as digits as its factorization.

1320202901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 1320202901 is about 36334.5964749851. The cubic root of 1320202901 is about 1097.0175133006.

The spelling of 1320202901 in words is "one billion, three hundred twenty million, two hundred two thousand, nine hundred one".