111332321 has 2 divisors, whose sum is σ = 111332322. Its totient is φ = 111332320.

The previous prime is 111332281. The next prime is 111332327. The reversal of 111332321 is 123233111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 98227921 + 13104400 = 9911^2 + 3620^2 .

It is a cyclic number.

It is not a de Polignac number, because 111332321 - 2⁶ = 111332257 is a prime.

It is a Chen prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111332321.

It is not a weakly prime, because it can be changed into another prime (111332327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55666160 + 55666161.

It is an arithmetic number, because the mean of its divisors is an integer number (55666161).

Almost surely, 2^111332321 is an apocalyptic number.

It is an amenable number.

111332321 is a deficient number, since it is larger than the sum of its proper divisors (1).

111332321 is an equidigital number, since it uses as much as digits as its factorization.

111332321 is an evil number, because the sum of its binary digits is even.

The product of its digits is 108, while the sum is 17.

The square root of 111332321 is about 10551.4132228816. The cubic root of 111332321 is about 481.0686851459.

Adding to 111332321 its reverse (123233111), we get a palindrome (234565432).

The spelling of 111332321 in words is "one hundred eleven million, three hundred thirty-two thousand, three hundred twenty-one".