2011210897 has 2 divisors, whose sum is σ = 2011210898. Its totient is φ = 2011210896.

The previous prime is 2011210889. The next prime is 2011210913. The reversal of 2011210897 is 7980121102.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 2010715281 + 495616 = 44841^2 + 704^2 .

It is a cyclic number.

It is not a de Polignac number, because 2011210897 - 2³ = 2011210889 is a prime.

It is not a weakly prime, because it can be changed into another prime (2011210847) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1005605448 + 1005605449.

It is an arithmetic number, because the mean of its divisors is an integer number (1005605449).

Almost surely, 2^2011210897 is an apocalyptic number.

It is an amenable number.

2011210897 is a deficient number, since it is larger than the sum of its proper divisors (1).

2011210897 is an equidigital number, since it uses as much as digits as its factorization.

2011210897 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2016, while the sum is 31.

The square root of 2011210897 is about 44846.5260304519. The cubic root of 2011210897 is about 1262.2708057233.

Adding to 2011210897 its reverse (7980121102), we get a palindrome (9991331999).

The spelling of 2011210897 in words is "two billion, eleven million, two hundred ten thousand, eight hundred ninety-seven".