211241400017 has 2 divisors, whose sum is σ = 211241400018. Its totient is φ = 211241400016.

The previous prime is 211241399981. The next prime is 211241400089. The reversal of 211241400017 is 710004142112.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 156353813056 + 54887586961 = 395416^2 + 234281^2 .

It is a cyclic number.

It is not a de Polignac number, because 211241400017 - 2²⁴ = 211224622801 is a prime.

It is a super-2 number, since 2×211241400017² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211241399965 and 211241400001.

It is not a weakly prime, because it can be changed into another prime (211241400317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105620700008 + 105620700009.

It is an arithmetic number, because the mean of its divisors is an integer number (105620700009).

Almost surely, 2^211241400017 is an apocalyptic number.

It is an amenable number.

211241400017 is a deficient number, since it is larger than the sum of its proper divisors (1).

211241400017 is an equidigital number, since it uses as much as digits as its factorization.

211241400017 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 448, while the sum is 23.

Adding to 211241400017 its reverse (710004142112), we get a palindrome (921245542129).

The spelling of 211241400017 in words is "two hundred eleven billion, two hundred forty-one million, four hundred thousand, seventeen".