211133320369 has 2 divisors, whose sum is σ = 211133320370. Its totient is φ = 211133320368.

The previous prime is 211133320267. The next prime is 211133320439. The reversal of 211133320369 is 963023331112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 184990311025 + 26143009344 = 430105^2 + 161688^2 .

It is a cyclic number.

It is not a de Polignac number, because 211133320369 - 2³⁵ = 176773582001 is a prime.

It is a super-2 number, since 2×211133320369² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211133320169) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105566660184 + 105566660185.

It is an arithmetic number, because the mean of its divisors is an integer number (105566660185).

Almost surely, 2^211133320369 is an apocalyptic number.

It is an amenable number.

211133320369 is a deficient number, since it is larger than the sum of its proper divisors (1).

211133320369 is an equidigital number, since it uses as much as digits as its factorization.

211133320369 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 17496, while the sum is 34.

The spelling of 211133320369 in words is "two hundred eleven billion, one hundred thirty-three million, three hundred twenty thousand, three hundred sixty-nine".