211333130069 has 2 divisors, whose sum is σ = 211333130070. Its totient is φ = 211333130068.

The previous prime is 211333130053. The next prime is 211333130117. The reversal of 211333130069 is 960031333112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 196304821969 + 15028308100 = 443063^2 + 122590^2 .

It is a cyclic number.

It is not a de Polignac number, because 211333130069 - 2⁴ = 211333130053 is a prime.

It is a super-2 number, since 2×211333130069² (a number of 23 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211333130009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105666565034 + 105666565035.

It is an arithmetic number, because the mean of its divisors is an integer number (105666565035).

Almost surely, 2^211333130069 is an apocalyptic number.

It is an amenable number.

211333130069 is a deficient number, since it is larger than the sum of its proper divisors (1).

211333130069 is an equidigital number, since it uses as much as digits as its factorization.

211333130069 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8748, while the sum is 32.

The spelling of 211333130069 in words is "two hundred eleven billion, three hundred thirty-three million, one hundred thirty thousand, sixty-nine".