11243013211 has 4 divisors (see below), whose sum is σ = 11247931552. Its totient is φ = 11238094872.

The previous prime is 11243013179. The next prime is 11243013227. The reversal of 11243013211 is 11231034211.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 11243013211 - 2⁵ = 11243013179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11243013281) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2455740 + ... + 2460313.

It is an arithmetic number, because the mean of its divisors is an integer number (2811982888).

Almost surely, 2^11243013211 is an apocalyptic number.

11243013211 is a deficient number, since it is larger than the sum of its proper divisors (4918341).

11243013211 is an equidigital number, since it uses as much as digits as its factorization.

11243013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4918340.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 11243013211 its reverse (11231034211), we get a palindrome (22474047422).

The spelling of 11243013211 in words is "eleven billion, two hundred forty-three million, thirteen thousand, two hundred eleven".