11211232103 has 4 divisors (see below), whose sum is σ = 11237124528. Its totient is φ = 11185339680.

The previous prime is 11211232069. The next prime is 11211232111. The reversal of 11211232103 is 30123211211.

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 11211232103 - 2²⁶ = 11144123239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11211235103) 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, 12945563 + ... + 12946428.

It is an arithmetic number, because the mean of its divisors is an integer number (2809281132).

Almost surely, 2^11211232103 is an apocalyptic number.

11211232103 is a deficient number, since it is larger than the sum of its proper divisors (25892425).

11211232103 is an equidigital number, since it uses as much as digits as its factorization.

11211232103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25892424.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11211232103 its reverse (30123211211), we get a palindrome (41334443314).

The spelling of 11211232103 in words is "eleven billion, two hundred eleven million, two hundred thirty-two thousand, one hundred three".