111121010203 has 8 divisors (see below), whose sum is σ = 126998212608. Its totient is φ = 95244500904.

The previous prime is 111121010201. The next prime is 111121010213. The reversal of 111121010203 is 302010121111.

It is a happy number.

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

It is not a de Polignac number, because 111121010203 - 2¹ = 111121010201 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111121010201) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 234150 + ... + 526372.

It is an arithmetic number, because the mean of its divisors is an integer number (15874776576).

Almost surely, 2^111121010203 is an apocalyptic number.

111121010203 is a deficient number, since it is larger than the sum of its proper divisors (15877202405).

111121010203 is an equidigital number, since it uses as much as digits as its factorization.

111121010203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 346553.

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

Adding to 111121010203 its reverse (302010121111), we get a palindrome (413131131314).

The spelling of 111121010203 in words is "one hundred eleven billion, one hundred twenty-one million, ten thousand, two hundred three".