11251020211 has 2 divisors, whose sum is σ = 11251020212. Its totient is φ = 11251020210.

The previous prime is 11251020191. The next prime is 11251020229. The reversal of 11251020211 is 11202015211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11251020211 - 2⁹ = 11251019699 is a prime.

It is not a weakly prime, because it can be changed into another prime (11251020251) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5625510105 + 5625510106.

It is an arithmetic number, because the mean of its divisors is an integer number (5625510106).

Almost surely, 2^11251020211 is an apocalyptic number.

11251020211 is a deficient number, since it is larger than the sum of its proper divisors (1).

11251020211 is an equidigital number, since it uses as much as digits as its factorization.

11251020211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40, while the sum is 16.

Adding to 11251020211 its reverse (11202015211), we get a palindrome (22453035422).

The spelling of 11251020211 in words is "eleven billion, two hundred fifty-one million, twenty thousand, two hundred eleven".