111322303021 has 4 divisors (see below), whose sum is σ = 111327350332. Its totient is φ = 111317255712.

The previous prime is 111322303019. The next prime is 111322303069. The reversal of 111322303021 is 120303223111.

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 45257882121 + 66064420900 = 212739^2 + 257030^2 .

It is a cyclic number.

It is not a de Polignac number, because 111322303021 - 2¹ = 111322303019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111322303021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (111322303921) 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, 2490426 + ... + 2534731.

It is an arithmetic number, because the mean of its divisors is an integer number (27831837583).

Almost surely, 2^111322303021 is an apocalyptic number.

It is an amenable number.

111322303021 is a deficient number, since it is larger than the sum of its proper divisors (5047311).

111322303021 is an equidigital number, since it uses as much as digits as its factorization.

111322303021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5047310.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 111322303021 its reverse (120303223111), we get a palindrome (231625526132).

The spelling of 111322303021 in words is "one hundred eleven billion, three hundred twenty-two million, three hundred three thousand, twenty-one".