1021323223 has 2 divisors, whose sum is σ = 1021323224. Its totient is φ = 1021323222.

The previous prime is 1021323209. The next prime is 1021323227. The reversal of 1021323223 is 3223231201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021323223 - 2⁹ = 1021322711 is a prime.

It is a super-2 number, since 2×1021323223² = 2086202251678215458, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1021323223.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021323227) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510661611 + 510661612.

It is an arithmetic number, because the mean of its divisors is an integer number (510661612).

Almost surely, 2^1021323223 is an apocalyptic number.

1021323223 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021323223 is an equidigital number, since it uses as much as digits as its factorization.

1021323223 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 1021323223 is about 31958.1479907707. The cubic root of 1021323223 is about 1007.0578111128.

Adding to 1021323223 its reverse (3223231201), we get a palindrome (4244554424).

The spelling of 1021323223 in words is "one billion, twenty-one million, three hundred twenty-three thousand, two hundred twenty-three".