1020297911 has 2 divisors, whose sum is σ = 1020297912. Its totient is φ = 1020297910.

The previous prime is 1020297907. The next prime is 1020297953. The reversal of 1020297911 is 1197920201.

1020297911 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1020297911 - 2² = 1020297907 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1020291911) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510148955 + 510148956.

It is an arithmetic number, because the mean of its divisors is an integer number (510148956).

Almost surely, 2^1020297911 is an apocalyptic number.

1020297911 is a deficient number, since it is larger than the sum of its proper divisors (1).

1020297911 is an equidigital number, since it uses as much as digits as its factorization.

1020297911 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2268, while the sum is 32.

The square root of 1020297911 is about 31942.1024824604. The cubic root of 1020297911 is about 1006.7207013206.

The spelling of 1020297911 in words is "one billion, twenty million, two hundred ninety-seven thousand, nine hundred eleven".