11120233121 has 4 divisors (see below), whose sum is σ = 11130316032. Its totient is φ = 11110150212.

The previous prime is 11120233109. The next prime is 11120233123. The reversal of 11120233121 is 12133202111.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 12133202111 = 431 ⋅28151281.

It is a cyclic number.

It is not a de Polignac number, because 11120233121 - 2⁶ = 11120233057 is a prime.

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 11120233121.

It is not an unprimeable number, because it can be changed into a prime (11120233123) 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, 5039801 + ... + 5042006.

It is an arithmetic number, because the mean of its divisors is an integer number (2782579008).

Almost surely, 2^11120233121 is an apocalyptic number.

It is an amenable number.

11120233121 is a deficient number, since it is larger than the sum of its proper divisors (10082911).

11120233121 is a wasteful number, since it uses less digits than its factorization.

11120233121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10082910.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11120233121 its reverse (12133202111), we get a palindrome (23253435232).

The spelling of 11120233121 in words is "eleven billion, one hundred twenty million, two hundred thirty-three thousand, one hundred twenty-one".