11121200123 has 16 divisors (see below), whose sum is σ = 12497760000. Its totient is φ = 9808723680.

The previous prime is 11121200093. The next prime is 11121200159. The reversal of 11121200123 is 32100212111.

It is a cyclic number.

It is not a de Polignac number, because 11121200123 - 2¹² = 11121196027 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 11121200098 and 11121200107.

It is not an unprimeable number, because it can be changed into a prime (11121200723) 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, 8423 + ... + 149376.

It is an arithmetic number, because the mean of its divisors is an integer number (781110000).

Almost surely, 2^11121200123 is an apocalyptic number.

11121200123 is a deficient number, since it is larger than the sum of its proper divisors (1376559877).

11121200123 is a wasteful number, since it uses less digits than its factorization.

11121200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 158002.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 11121200123 its reverse (32100212111), we get a palindrome (43221412234).

The spelling of 11121200123 in words is "eleven billion, one hundred twenty-one million, two hundred thousand, one hundred twenty-three".