1021243343 has 2 divisors, whose sum is σ = 1021243344. Its totient is φ = 1021243342.

The previous prime is 1021243303. The next prime is 1021243357. The reversal of 1021243343 is 3433421201.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1021243343 - 2¹⁴ = 1021226959 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1021243303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 510621671 + 510621672.

It is an arithmetic number, because the mean of its divisors is an integer number (510621672).

Almost surely, 2^1021243343 is an apocalyptic number.

1021243343 is a deficient number, since it is larger than the sum of its proper divisors (1).

1021243343 is an equidigital number, since it uses as much as digits as its factorization.

1021243343 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 1021243343 is about 31956.8982068035. The cubic root of 1021243343 is about 1007.0315556716.

Adding to 1021243343 its reverse (3433421201), we get a palindrome (4454664544).

The spelling of 1021243343 in words is "one billion, twenty-one million, two hundred forty-three thousand, three hundred forty-three".