211301299997 has 2 divisors, whose sum is σ = 211301299998. Its totient is φ = 211301299996.

The previous prime is 211301299981. The next prime is 211301300011. The reversal of 211301299997 is 799992103112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 180738917956 + 30562382041 = 425134^2 + 174821^2 .

It is a cyclic number.

It is not a de Polignac number, because 211301299997 - 2⁴ = 211301299981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211301299397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105650649998 + 105650649999.

It is an arithmetic number, because the mean of its divisors is an integer number (105650649999).

Almost surely, 2^211301299997 is an apocalyptic number.

It is an amenable number.

211301299997 is a deficient number, since it is larger than the sum of its proper divisors (1).

211301299997 is an equidigital number, since it uses as much as digits as its factorization.

211301299997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 551124, while the sum is 53.

The spelling of 211301299997 in words is "two hundred eleven billion, three hundred one million, two hundred ninety-nine thousand, nine hundred ninety-seven".