11121110131123 has 4 divisors (see below), whose sum is σ = 11122455055360. Its totient is φ = 11119765206888.

The previous prime is 11121110131111. The next prime is 11121110131129. The reversal of 11121110131123 is 32113101112111.

11121110131123 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 11121110131123 - 2¹⁷ = 11121110000051 is a prime.

It is a super-2 number, since 2×11121110131123² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11121110131123.

It is not an unprimeable number, because it can be changed into a prime (11121110131129) 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, 672449715 + ... + 672466252.

It is an arithmetic number, because the mean of its divisors is an integer number (2780613763840).

Almost surely, 2^{11121110131123} is an apocalyptic number.

11121110131123 is a deficient number, since it is larger than the sum of its proper divisors (1344924237).

11121110131123 is an equidigital number, since it uses as much as digits as its factorization.

11121110131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1344924236.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 11121110131123 its reverse (32113101112111), we get a palindrome (43234211243234).

The spelling of 11121110131123 in words is "eleven trillion, one hundred twenty-one billion, one hundred ten million, one hundred thirty-one thousand, one hundred twenty-three".