212011332311 has 2 divisors, whose sum is σ = 212011332312. Its totient is φ = 212011332310.

The previous prime is 212011332293. The next prime is 212011332397. The reversal of 212011332311 is 113233110212.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212011332311 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (212011332011) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 106005666155 + 106005666156.

It is an arithmetic number, because the mean of its divisors is an integer number (106005666156).

Almost surely, 2^212011332311 is an apocalyptic number.

212011332311 is a deficient number, since it is larger than the sum of its proper divisors (1).

212011332311 is an equidigital number, since it uses as much as digits as its factorization.

212011332311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 212011332311 its reverse (113233110212), we get a palindrome (325244442523).

The spelling of 212011332311 in words is "two hundred twelve billion, eleven million, three hundred thirty-two thousand, three hundred eleven".