211223310029 has 2 divisors, whose sum is σ = 211223310030. Its totient is φ = 211223310028.

The previous prime is 211223310007. The next prime is 211223310049. The reversal of 211223310029 is 920013322112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 210315794404 + 907515625 = 458602^2 + 30125^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211223310029 is a prime.

It is a super-3 number, since 3×211223310029³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211223310049) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105611655014 + 105611655015.

It is an arithmetic number, because the mean of its divisors is an integer number (105611655015).

Almost surely, 2^211223310029 is an apocalyptic number.

It is an amenable number.

211223310029 is a deficient number, since it is larger than the sum of its proper divisors (1).

211223310029 is an equidigital number, since it uses as much as digits as its factorization.

211223310029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 211223310029 in words is "two hundred eleven billion, two hundred twenty-three million, three hundred ten thousand, twenty-nine".