11123210103 has 4 divisors (see below), whose sum is σ = 14830946808. Its totient is φ = 7415473400.

The previous prime is 11123210089. The next prime is 11123210123. The reversal of 11123210103 is 30101232111.

It is a happy number.

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 11123210103 - 2⁸ = 11123209847 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123210123) 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, 1853868348 + ... + 1853868353.

It is an arithmetic number, because the mean of its divisors is an integer number (3707736702).

Almost surely, 2^11123210103 is an apocalyptic number.

11123210103 is a deficient number, since it is larger than the sum of its proper divisors (3707736705).

11123210103 is an equidigital number, since it uses as much as digits as its factorization.

11123210103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3707736704.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 11123210103 its reverse (30101232111), we get a palindrome (41224442214).

The spelling of 11123210103 in words is "eleven billion, one hundred twenty-three million, two hundred ten thousand, one hundred three".