211402017 has 6 divisors (see below), whose sum is σ = 305358482. Its totient is φ = 140934672.

The previous prime is 211402013. The next prime is 211402019. The reversal of 211402017 is 710204112.

211402017 is nontrivially palindromic in base 8.

211402017 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in only one way, i.e., 112021056 + 99380961 = 10584^2 + 9969^2 .

It is not a de Polignac number, because 211402017 - 2² = 211402013 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (211402013) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11744548 + ... + 11744565.

Almost surely, 2^211402017 is an apocalyptic number.

It is an amenable number.

211402017 is a deficient number, since it is larger than the sum of its proper divisors (93956465).

211402017 is a wasteful number, since it uses less digits than its factorization.

211402017 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23489119 (or 23489116 counting only the distinct ones).

The product of its (nonzero) digits is 112, while the sum is 18.

The square root of 211402017 is about 14539.6704570633. The cubic root of 211402017 is about 595.7120369560.

Adding to 211402017 its reverse (710204112), we get a palindrome (921606129).

The spelling of 211402017 in words is "two hundred eleven million, four hundred two thousand, seventeen".