111110020321 has 4 divisors (see below), whose sum is σ = 111775349952. Its totient is φ = 110444690692.

The previous prime is 111110020303. The next prime is 111110020331. The reversal of 111110020321 is 123020011111.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 123020011111 = 1861 ⋅66104251.

It is a cyclic number.

It is not a de Polignac number, because 111110020321 - 2⁹ = 111110019809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111110020331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 332664565 + ... + 332664898.

It is an arithmetic number, because the mean of its divisors is an integer number (27943837488).

Almost surely, 2^111110020321 is an apocalyptic number.

It is an amenable number.

111110020321 is a deficient number, since it is larger than the sum of its proper divisors (665329631).

111110020321 is an equidigital number, since it uses as much as digits as its factorization.

111110020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665329630.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 111110020321 its reverse (123020011111), we get a palindrome (234130031432).

The spelling of 111110020321 in words is "one hundred eleven billion, one hundred ten million, twenty thousand, three hundred twenty-one".