11123400111 has 8 divisors (see below), whose sum is σ = 14887593600. Its totient is φ = 7387403352.

The previous prime is 11123400073. The next prime is 11123400133. The reversal of 11123400111 is 11100432111.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 11123400111 - 2⁷ = 11123399983 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123400011) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7048261 + ... + 7049838.

It is an arithmetic number, because the mean of its divisors is an integer number (1860949200).

Almost surely, 2^11123400111 is an apocalyptic number.

11123400111 is a deficient number, since it is larger than the sum of its proper divisors (3764193489).

11123400111 is a wasteful number, since it uses less digits than its factorization.

11123400111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14098365.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 11123400111 its reverse (11100432111), we get a palindrome (22223832222).

The spelling of 11123400111 in words is "eleven billion, one hundred twenty-three million, four hundred thousand, one hundred eleven".