1211301201133 has 2 divisors, whose sum is σ = 1211301201134. Its totient is φ = 1211301201132.

The previous prime is 1211301201037. The next prime is 1211301201157. The reversal of 1211301201133 is 3311021031121.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1075922829289 + 135378371844 = 1037267^2 + 367938^2 .

It is a cyclic number.

It is not a de Polignac number, because 1211301201133 - 2³³ = 1202711266541 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1211301201133.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1211301201233) 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, 605650600566 + 605650600567.

It is an arithmetic number, because the mean of its divisors is an integer number (605650600567).

Almost surely, 2^{1211301201133} is an apocalyptic number.

It is an amenable number.

1211301201133 is a deficient number, since it is larger than the sum of its proper divisors (1).

1211301201133 is an equidigital number, since it uses as much as digits as its factorization.

1211301201133 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 19.

Adding to 1211301201133 its reverse (3311021031121), we get a palindrome (4522322232254).

The spelling of 1211301201133 in words is "one trillion, two hundred eleven billion, three hundred one million, two hundred one thousand, one hundred thirty-three".