211033117 has 2 divisors, whose sum is σ = 211033118. Its totient is φ = 211033116.

The previous prime is 211033079. The next prime is 211033129. The reversal of 211033117 is 711330112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 188952516 + 22080601 = 13746^2 + 4699^2 .

It is a cyclic number.

It is not a de Polignac number, because 211033117 - 2⁷ = 211032989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 211033094 and 211033103.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211033157) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105516558 + 105516559.

It is an arithmetic number, because the mean of its divisors is an integer number (105516559).

Almost surely, 2^211033117 is an apocalyptic number.

It is an amenable number.

211033117 is a deficient number, since it is larger than the sum of its proper divisors (1).

211033117 is an equidigital number, since it uses as much as digits as its factorization.

211033117 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 126, while the sum is 19.

The square root of 211033117 is about 14526.9789357595. The cubic root of 211033117 is about 595.3653261017.

Adding to 211033117 its reverse (711330112), we get a palindrome (922363229).

The spelling of 211033117 in words is "two hundred eleven million, thirty-three thousand, one hundred seventeen".