1321442033 has 2 divisors, whose sum is σ = 1321442034. Its totient is φ = 1321442032.

The previous prime is 1321442029. The next prime is 1321442071. The reversal of 1321442033 is 3302441231.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 1302632464 + 18809569 = 36092^2 + 4337^2 .

It is an emirp because it is prime and its reverse (3302441231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321442033 - 2² = 1321442029 is a prime.

It is not a weakly prime, because it can be changed into another prime (1321412033) 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, 660721016 + 660721017.

It is an arithmetic number, because the mean of its divisors is an integer number (660721017).

Almost surely, 2^1321442033 is an apocalyptic number.

It is an amenable number.

1321442033 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321442033 is an equidigital number, since it uses as much as digits as its factorization.

1321442033 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 1321442033 is about 36351.6441581395. The cubic root of 1321442033 is about 1097.3606232963.

Adding to 1321442033 its reverse (3302441231), we get a palindrome (4623883264).

The spelling of 1321442033 in words is "one billion, three hundred twenty-one million, four hundred forty-two thousand, thirty-three".