111330031321 has 4 divisors (see below), whose sum is σ = 111332481700. Its totient is φ = 111327580944.

The previous prime is 111330031291. The next prime is 111330031361. The reversal of 111330031321 is 123130033111.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 67397871321 + 43932160000 = 259611^2 + 209600^2 .

It is a cyclic number.

It is not a de Polignac number, because 111330031321 - 2⁷ = 111330031193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111330031361) 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 3 ways as a sum of consecutive naturals, for example, 1155726 + ... + 1248343.

It is an arithmetic number, because the mean of its divisors is an integer number (27833120425).

Almost surely, 2^111330031321 is an apocalyptic number.

It is an amenable number.

111330031321 is a deficient number, since it is larger than the sum of its proper divisors (2450379).

111330031321 is an equidigital number, since it uses as much as digits as its factorization.

111330031321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2450378.

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 111330031321 its reverse (123130033111), we get a palindrome (234460064432).

The spelling of 111330031321 in words is "one hundred eleven billion, three hundred thirty million, thirty-one thousand, three hundred twenty-one".