11421330211 has 4 divisors (see below), whose sum is σ = 11433093624. Its totient is φ = 11409566800.

The previous prime is 11421330209. The next prime is 11421330253. The reversal of 11421330211 is 11203312411.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11203312411 = 137 ⋅81776003.

It is a cyclic number.

It is not a de Polignac number, because 11421330211 - 2¹ = 11421330209 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11421336211) 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, 5880250 + ... + 5882191.

It is an arithmetic number, because the mean of its divisors is an integer number (2858273406).

Almost surely, 2^11421330211 is an apocalyptic number.

11421330211 is a deficient number, since it is larger than the sum of its proper divisors (11763413).

11421330211 is an equidigital number, since it uses as much as digits as its factorization.

11421330211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11763412.

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

Adding to 11421330211 its reverse (11203312411), we get a palindrome (22624642622).

The spelling of 11421330211 in words is "eleven billion, four hundred twenty-one million, three hundred thirty thousand, two hundred eleven".