111000123321 has 32 divisors (see below), whose sum is σ = 156283792896. Its totient is φ = 69984000000.

The previous prime is 111000123293. The next prime is 111000123329. The reversal of 111000123321 is 123321000111.

It is a happy number.

It is not a de Polignac number, because 111000123321 - 2⁹ = 111000122809 is a prime.

111000123321 is a modest number, since divided by 123321 gives 1110 as remainder.

It is a self number, because there is not a number n which added to its sum of digits gives 111000123321.

It is not an unprimeable number, because it can be changed into a prime (111000123329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1188321 + ... + 1278321.

It is an arithmetic number, because the mean of its divisors is an integer number (4883868528).

Almost surely, 2^111000123321 is an apocalyptic number.

It is an amenable number.

111000123321 is a deficient number, since it is larger than the sum of its proper divisors (45283669575).

111000123321 is a wasteful number, since it uses less digits than its factorization.

111000123321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 90353.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 111000123321 its reverse (123321000111), we get a palindrome (234321123432).

The spelling of 111000123321 in words is "one hundred eleven billion, one hundred twenty-three thousand, three hundred twenty-one".