11113011211 has 4 divisors (see below), whose sum is σ = 11144854000. Its totient is φ = 11081168424.

The previous prime is 11113011193. The next prime is 11113011313. The reversal of 11113011211 is 11211031111.

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 11113011211 - 2¹³ = 11113003019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11113011191 and 11113011200.

It is not an unprimeable number, because it can be changed into a prime (11113018211) 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, 15920871 + ... + 15921568.

It is an arithmetic number, because the mean of its divisors is an integer number (2786213500).

Almost surely, 2^11113011211 is an apocalyptic number.

11113011211 is a deficient number, since it is larger than the sum of its proper divisors (31842789).

11113011211 is an equidigital number, since it uses as much as digits as its factorization.

11113011211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31842788.

The product of its (nonzero) digits is 6, while the sum is 13.

Adding to 11113011211 its reverse (11211031111), we get a palindrome (22324042322).

The spelling of 11113011211 in words is "eleven billion, one hundred thirteen million, eleven thousand, two hundred eleven".