111112201021203 has 20 divisors (see below), whose sum is σ = 165989098881760. Its totient is φ = 74071821695472.

The previous prime is 111112201021187. The next prime is 111112201021231. The reversal of 111112201021203 is 302120102211111.

It is a happy number.

It is not a de Polignac number, because 111112201021203 - 2⁴ = 111112201021187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111112201021253) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 25555723 + ... + 29585796.

It is an arithmetic number, because the mean of its divisors is an integer number (8299454944088).

Almost surely, 2^{111112201021203} is an apocalyptic number.

111112201021203 is a deficient number, since it is larger than the sum of its proper divisors (54876897860557).

111112201021203 is an equidigital number, since it uses as much as digits as its factorization.

111112201021203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 55166408 (or 55166399 counting only the distinct ones).

The product of its (nonzero) digits is 48, while the sum is 18.

Adding to 111112201021203 its reverse (302120102211111), we get a palindrome (413232303232314).

The spelling of 111112201021203 in words is "one hundred eleven trillion, one hundred twelve billion, two hundred one million, twenty-one thousand, two hundred three".