11121423311 has 4 divisors (see below), whose sum is σ = 11706761400. Its totient is φ = 10536085224.

The previous prime is 11121423301. The next prime is 11121423323. The reversal of 11121423311 is 11332412111.

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 11121423311 - 2¹⁴ = 11121406927 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 (11121423301) 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, 292669016 + ... + 292669053.

It is an arithmetic number, because the mean of its divisors is an integer number (2926690350).

Almost surely, 2^11121423311 is an apocalyptic number.

11121423311 is a deficient number, since it is larger than the sum of its proper divisors (585338089).

11121423311 is an equidigital number, since it uses as much as digits as its factorization.

11121423311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 585338088.

The product of its digits is 144, while the sum is 20.

Adding to 11121423311 its reverse (11332412111), we get a palindrome (22453835422).

The spelling of 11121423311 in words is "eleven billion, one hundred twenty-one million, four hundred twenty-three thousand, three hundred eleven".