211230004417 has 2 divisors, whose sum is σ = 211230004418. Its totient is φ = 211230004416.

The previous prime is 211230004399. The next prime is 211230004421. The reversal of 211230004417 is 714400032112.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 176975027856 + 34254976561 = 420684^2 + 185081^2 .

It is a cyclic number.

It is not a de Polignac number, because 211230004417 - 2⁷ = 211230004289 is a prime.

It is a super-2 number, since 2×211230004417² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 211230004391 and 211230004400.

It is not a weakly prime, because it can be changed into another prime (211230034417) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105615002208 + 105615002209.

It is an arithmetic number, because the mean of its divisors is an integer number (105615002209).

Almost surely, 2^211230004417 is an apocalyptic number.

It is an amenable number.

211230004417 is a deficient number, since it is larger than the sum of its proper divisors (1).

211230004417 is an equidigital number, since it uses as much as digits as its factorization.

211230004417 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1344, while the sum is 25.

Adding to 211230004417 its reverse (714400032112), we get a palindrome (925630036529).

The spelling of 211230004417 in words is "two hundred eleven billion, two hundred thirty million, four thousand, four hundred seventeen".