1321433023 has 2 divisors, whose sum is σ = 1321433024. Its totient is φ = 1321433022.

The previous prime is 1321433011. The next prime is 1321433093. The reversal of 1321433023 is 3203341231.

It is a weak prime.

It is an emirp because it is prime and its reverse (3203341231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321433023 - 2⁵ = 1321432991 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1321432985 and 1321433003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321433093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660716511 + 660716512.

It is an arithmetic number, because the mean of its divisors is an integer number (660716512).

Almost surely, 2^1321433023 is an apocalyptic number.

1321433023 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321433023 is an equidigital number, since it uses as much as digits as its factorization.

1321433023 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 22.

The square root of 1321433023 is about 36351.5202295585. The cubic root of 1321433023 is about 1097.3581292428.

Adding to 1321433023 its reverse (3203341231), we get a palindrome (4524774254).

The spelling of 1321433023 in words is "one billion, three hundred twenty-one million, four hundred thirty-three thousand, twenty-three".