11243212103 has 4 divisors (see below), whose sum is σ = 11433775080. Its totient is φ = 11052649128.

The previous prime is 11243212087. The next prime is 11243212117. The reversal of 11243212103 is 30121234211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30121234211 = 2393 ⋅12587227.

It is a cyclic number.

It is not a de Polignac number, because 11243212103 - 2⁴ = 11243212087 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 (11243232103) 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, 95281400 + ... + 95281517.

It is an arithmetic number, because the mean of its divisors is an integer number (2858443770).

Almost surely, 2^11243212103 is an apocalyptic number.

11243212103 is a deficient number, since it is larger than the sum of its proper divisors (190562977).

11243212103 is an equidigital number, since it uses as much as digits as its factorization.

11243212103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 190562976.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 11243212103 its reverse (30121234211), we get a palindrome (41364446314).

The spelling of 11243212103 in words is "eleven billion, two hundred forty-three million, two hundred twelve thousand, one hundred three".