210213331291 has 2 divisors, whose sum is σ = 210213331292. Its totient is φ = 210213331290.

The previous prime is 210213331199. The next prime is 210213331331. The reversal of 210213331291 is 192133312012.

210213331291 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-210213331291 is a prime.

It is not a weakly prime, because it can be changed into another prime (210213331091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105106665645 + 105106665646.

It is an arithmetic number, because the mean of its divisors is an integer number (105106665646).

Almost surely, 2^210213331291 is an apocalyptic number.

210213331291 is a deficient number, since it is larger than the sum of its proper divisors (1).

210213331291 is an equidigital number, since it uses as much as digits as its factorization.

210213331291 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 28.

The spelling of 210213331291 in words is "two hundred ten billion, two hundred thirteen million, three hundred thirty-one thousand, two hundred ninety-one".