13550321233 has 2 divisors, whose sum is σ = 13550321234. Its totient is φ = 13550321232.

The previous prime is 13550321227. The next prime is 13550321273. The reversal of 13550321233 is 33212305531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 8997850449 + 4552470784 = 94857^2 + 67472^2 .

It is an emirp because it is prime and its reverse (33212305531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13550321233 - 2¹⁷ = 13550190161 is a prime.

It is a super-2 number, since 2×13550321233² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (13550321203) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6775160616 + 6775160617.

It is an arithmetic number, because the mean of its divisors is an integer number (6775160617).

Almost surely, 2^13550321233 is an apocalyptic number.

It is an amenable number.

13550321233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13550321233 is an equidigital number, since it uses as much as digits as its factorization.

13550321233 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8100, while the sum is 28.

Adding to 13550321233 its reverse (33212305531), we get a palindrome (46762626764).

The spelling of 13550321233 in words is "thirteen billion, five hundred fifty million, three hundred twenty-one thousand, two hundred thirty-three".