1333121201 has 2 divisors, whose sum is σ = 1333121202. Its totient is φ = 1333121200.

The previous prime is 1333121189. The next prime is 1333121203. The reversal of 1333121201 is 1021213331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1103568400 + 229552801 = 33220^2 + 15151^2 .

It is an emirp because it is prime and its reverse (1021213331) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1333121201 - 2¹⁸ = 1332859057 is a prime.

Together with 1333121203, it forms a pair of twin primes.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1333121201.

It is not a weakly prime, because it can be changed into another prime (1333121203) 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, 666560600 + 666560601.

It is an arithmetic number, because the mean of its divisors is an integer number (666560601).

Almost surely, 2^1333121201 is an apocalyptic number.

It is an amenable number.

1333121201 is a deficient number, since it is larger than the sum of its proper divisors (1).

1333121201 is an equidigital number, since it uses as much as digits as its factorization.

1333121201 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 17.

The square root of 1333121201 is about 36511.9323098628. The cubic root of 1333121201 is about 1100.5840427414.

Adding to 1333121201 its reverse (1021213331), we get a palindrome (2354334532).

The spelling of 1333121201 in words is "one billion, three hundred thirty-three million, one hundred twenty-one thousand, two hundred one".