111203421203 has 8 divisors (see below), whose sum is σ = 127391503200. Its totient is φ = 95090808960.

The previous prime is 111203421163. The next prime is 111203421229. The reversal of 111203421203 is 302124302111.

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

It is not a de Polignac number, because 111203421203 - 2⁸ = 111203420947 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (111203421253) 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, 18864278 + ... + 18870171.

It is an arithmetic number, because the mean of its divisors is an integer number (15923937900).

Almost surely, 2^111203421203 is an apocalyptic number.

111203421203 is a deficient number, since it is larger than the sum of its proper divisors (16188081997).

111203421203 is an equidigital number, since it uses as much as digits as its factorization.

111203421203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37734877.

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 111203421203 its reverse (302124302111), we get a palindrome (413327723314).

The spelling of 111203421203 in words is "one hundred eleven billion, two hundred three million, four hundred twenty-one thousand, two hundred three".