1323203121433 has 2 divisors, whose sum is σ = 1323203121434. Its totient is φ = 1323203121432.

The previous prime is 1323203121353. The next prime is 1323203121503. The reversal of 1323203121433 is 3341213023231.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1178325447049 + 144877674384 = 1085507^2 + 380628^2 .

It is a cyclic number.

It is not a de Polignac number, because 1323203121433 - 2¹³ = 1323203113241 is a prime.

It is not a weakly prime, because it can be changed into another prime (1323203121533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 661601560716 + 661601560717.

It is an arithmetic number, because the mean of its divisors is an integer number (661601560717).

Almost surely, 2^{1323203121433} is an apocalyptic number.

It is an amenable number.

1323203121433 is a deficient number, since it is larger than the sum of its proper divisors (1).

1323203121433 is an equidigital number, since it uses as much as digits as its factorization.

1323203121433 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 28.

Adding to 1323203121433 its reverse (3341213023231), we get a palindrome (4664416144664).

The spelling of 1323203121433 in words is "one trillion, three hundred twenty-three billion, two hundred three million, one hundred twenty-one thousand, four hundred thirty-three".