211133031133 has 2 divisors, whose sum is σ = 211133031134. Its totient is φ = 211133031132.

The previous prime is 211133031079. The next prime is 211133031163. The reversal of 211133031133 is 331130331112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 190935789444 + 20197241689 = 436962^2 + 142117^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211133031133 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211133031163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566515566 + 105566515567.

It is an arithmetic number, because the mean of its divisors is an integer number (105566515567).

Almost surely, 2^211133031133 is an apocalyptic number.

It is an amenable number.

211133031133 is a deficient number, since it is larger than the sum of its proper divisors (1).

211133031133 is an equidigital number, since it uses as much as digits as its factorization.

211133031133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 22.

Adding to 211133031133 its reverse (331130331112), we get a palindrome (542263362245).

The spelling of 211133031133 in words is "two hundred eleven billion, one hundred thirty-three million, thirty-one thousand, one hundred thirty-three".