211323313829 has 2 divisors, whose sum is σ = 211323313830. Its totient is φ = 211323313828.

The previous prime is 211323313811. The next prime is 211323313843. The reversal of 211323313829 is 928313323112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 110574205729 + 100749108100 = 332527^2 + 317410^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211323313829 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211323313792 and 211323313801.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211323313849) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661656914 + 105661656915.

It is an arithmetic number, because the mean of its divisors is an integer number (105661656915).

Almost surely, 2^211323313829 is an apocalyptic number.

It is an amenable number.

211323313829 is a deficient number, since it is larger than the sum of its proper divisors (1).

211323313829 is an equidigital number, since it uses as much as digits as its factorization.

211323313829 is an evil number, because the sum of its binary digits is even.

The product of its digits is 46656, while the sum is 38.

The spelling of 211323313829 in words is "two hundred eleven billion, three hundred twenty-three million, three hundred thirteen thousand, eight hundred twenty-nine".