11123301111 has 16 divisors (see below), whose sum is σ = 16086833280. Its totient is φ = 6795859680.

The previous prime is 11123301001. The next prime is 11123301131. The reversal of 11123301111 is 11110332111.

It is not a de Polignac number, because 11123301111 - 2¹⁰ = 11123300087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123301131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1020525 + ... + 1031366.

It is an arithmetic number, because the mean of its divisors is an integer number (1005427080).

Almost surely, 2^11123301111 is an apocalyptic number.

11123301111 is a deficient number, since it is larger than the sum of its proper divisors (4963532169).

11123301111 is a wasteful number, since it uses less digits than its factorization.

11123301111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2052046.

The product of its (nonzero) digits is 18, while the sum is 15.

Adding to 11123301111 its reverse (11110332111), we get a palindrome (22233633222).

The spelling of 11123301111 in words is "eleven billion, one hundred twenty-three million, three hundred one thousand, one hundred eleven".