2021322403 has 2 divisors, whose sum is σ = 2021322404. Its totient is φ = 2021322402.

The previous prime is 2021322383. The next prime is 2021322451. The reversal of 2021322403 is 3042231202.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2021322403 - 2⁹ = 2021321891 is a prime.

It is not a weakly prime, because it can be changed into another prime (2021322473) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1010661201 + 1010661202.

It is an arithmetic number, because the mean of its divisors is an integer number (1010661202).

Almost surely, 2^2021322403 is an apocalyptic number.

2021322403 is a deficient number, since it is larger than the sum of its proper divisors (1).

2021322403 is an equidigital number, since it uses as much as digits as its factorization.

2021322403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 576, while the sum is 19.

The square root of 2021322403 is about 44959.1192418179. The cubic root of 2021322403 is about 1264.3826559617.

Adding to 2021322403 its reverse (3042231202), we get a palindrome (5063553605).

The spelling of 2021322403 in words is "two billion, twenty-one million, three hundred twenty-two thousand, four hundred three".