211700504293 has 2 divisors, whose sum is σ = 211700504294. Its totient is φ = 211700504292.

The previous prime is 211700504251. The next prime is 211700504341. The reversal of 211700504293 is 392405007112.

It is a happy number.

211700504293 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 179421710724 + 32278793569 = 423582^2 + 179663^2 .

It is a cyclic number.

It is not a de Polignac number, because 211700504293 - 2²⁵ = 211666949861 is a prime.

It is a super-2 number, since 2×211700504293² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211700505293) 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, 105850252146 + 105850252147.

It is an arithmetic number, because the mean of its divisors is an integer number (105850252147).

Almost surely, 2^211700504293 is an apocalyptic number.

It is an amenable number.

211700504293 is a deficient number, since it is larger than the sum of its proper divisors (1).

211700504293 is an equidigital number, since it uses as much as digits as its factorization.

211700504293 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 15120, while the sum is 34.

The spelling of 211700504293 in words is "two hundred eleven billion, seven hundred million, five hundred four thousand, two hundred ninety-three".