211323303011 has 2 divisors, whose sum is σ = 211323303012. Its totient is φ = 211323303010.

The previous prime is 211323302987. The next prime is 211323303019. The reversal of 211323303011 is 110303323112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211323303011 is a prime.

It is a super-2 number, since 2×211323303011² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (211323303019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105661651505 + 105661651506.

It is an arithmetic number, because the mean of its divisors is an integer number (105661651506).

Almost surely, 2^211323303011 is an apocalyptic number.

211323303011 is a deficient number, since it is larger than the sum of its proper divisors (1).

211323303011 is an equidigital number, since it uses as much as digits as its factorization.

211323303011 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 211323303011 its reverse (110303323112), we get a palindrome (321626626123).

The spelling of 211323303011 in words is "two hundred eleven billion, three hundred twenty-three million, three hundred three thousand, eleven".