11123102311 has 4 divisors (see below), whose sum is σ = 11123327824. Its totient is φ = 11122876800.

The previous prime is 11123102299. The next prime is 11123102321. The reversal of 11123102311 is 11320132111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11320132111 = 23 ⋅492179657.

It is a cyclic number.

It is not a de Polignac number, because 11123102311 - 2⁷ = 11123102183 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 (11123102321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3450 + ... + 149191.

It is an arithmetic number, because the mean of its divisors is an integer number (2780831956).

Almost surely, 2^11123102311 is an apocalyptic number.

11123102311 is a deficient number, since it is larger than the sum of its proper divisors (225513).

11123102311 is an equidigital number, since it uses as much as digits as its factorization.

11123102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225512.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 11123102311 its reverse (11320132111), we get a palindrome (22443234422).

The spelling of 11123102311 in words is "eleven billion, one hundred twenty-three million, one hundred two thousand, three hundred eleven".