211000007 has 2 divisors, whose sum is σ = 211000008. Its totient is φ = 211000006.

The previous prime is 210999983. The next prime is 211000021. The reversal of 211000007 is 700000112.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-211000007 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (211000507) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 105500003 + 105500004.

It is an arithmetic number, because the mean of its divisors is an integer number (105500004).

Almost surely, 2^211000007 is an apocalyptic number.

211000007 is a deficient number, since it is larger than the sum of its proper divisors (1).

211000007 is an equidigital number, since it uses as much as digits as its factorization.

211000007 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14, while the sum is 11.

The square root of 211000007 is about 14525.8392872839. The cubic root of 211000007 is about 595.3341878974.

Adding to 211000007 its reverse (700000112), we get a palindrome (911000119).

The spelling of 211000007 in words is "two hundred eleven million, seven", and thus it is an aban number.