111000020321 has 8 divisors (see below), whose sum is σ = 111498050664. Its totient is φ = 110502175360.

The previous prime is 111000020311. The next prime is 111000020323. The reversal of 111000020321 is 123020000111.

It can be written as a sum of positive squares in 4 ways, for example, as 16145260096 + 94854760225 = 127064^2 + 307985^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 111000020321 - 2²⁶ = 110932911457 is a prime.

It is a super-2 number, since 2×111000020321² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (111000020323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1232651 + ... + 1319631.

It is an arithmetic number, because the mean of its divisors is an integer number (13937256333).

Almost surely, 2^111000020321 is an apocalyptic number.

It is an amenable number.

111000020321 is a deficient number, since it is larger than the sum of its proper divisors (498030343).

111000020321 is an equidigital number, since it uses as much as digits as its factorization.

111000020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92691.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 111000020321 its reverse (123020000111), we get a palindrome (234020020432).

The spelling of 111000020321 in words is "one hundred eleven billion, twenty thousand, three hundred twenty-one".