111203441224321 has 4 divisors (see below), whose sum is σ = 112452918092100. Its totient is φ = 109953964356544.

The previous prime is 111203441224319. The next prime is 111203441224327. The reversal of 111203441224321 is 123422144302111.

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 50283855214321 + 60919586010000 = 7091111^2 + 7805100^2 .

It is a cyclic number.

It is not a de Polignac number, because 111203441224321 - 2¹ = 111203441224319 is a prime.

It is a super-2 number, since 2×111203441224321² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111203441224327) 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, 624738433756 + ... + 624738433933.

It is an arithmetic number, because the mean of its divisors is an integer number (28113229523025).

Almost surely, 2^{111203441224321} is an apocalyptic number.

It is an amenable number.

111203441224321 is a deficient number, since it is larger than the sum of its proper divisors (1249476867779).

111203441224321 is an equidigital number, since it uses as much as digits as its factorization.

111203441224321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1249476867778.

The product of its (nonzero) digits is 9216, while the sum is 31.

Adding to 111203441224321 its reverse (123422144302111), we get a palindrome (234625585526432).

The spelling of 111203441224321 in words is "one hundred eleven trillion, two hundred three billion, four hundred forty-one million, two hundred twenty-four thousand, three hundred twenty-one".