11123121333 has 16 divisors (see below), whose sum is σ = 15478110720. Its totient is φ = 7091875824.

The previous prime is 11123121323. The next prime is 11123121343. The reversal of 11123121333 is 33312132111.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (11123121323) and next prime (11123121343).

It is not a de Polignac number, because 11123121333 - 2⁹ = 11123120821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11123121323) 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, 750210 + ... + 764892.

It is an arithmetic number, because the mean of its divisors is an integer number (967381920).

Almost surely, 2^11123121333 is an apocalyptic number.

It is an amenable number.

11123121333 is a deficient number, since it is larger than the sum of its proper divisors (4354989387).

11123121333 is a wasteful number, since it uses less digits than its factorization.

11123121333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25688.

The product of its digits is 324, while the sum is 21.

Adding to 11123121333 its reverse (33312132111), we get a palindrome (44435253444).

The spelling of 11123121333 in words is "eleven billion, one hundred twenty-three million, one hundred twenty-one thousand, three hundred thirty-three".