111213331203 has 32 divisors (see below), whose sum is σ = 174538893312. Its totient is φ = 62335296000.

The previous prime is 111213331181. The next prime is 111213331213. The reversal of 111213331203 is 302133312111.

It is a happy number.

It is not a de Polignac number, because 111213331203 - 2⁹ = 111213330691 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 111213331203.

It is not an unprimeable number, because it can be changed into a prime (111213331213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2684973 + ... + 2726078.

It is an arithmetic number, because the mean of its divisors is an integer number (5454340416).

Almost surely, 2^111213331203 is an apocalyptic number.

111213331203 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

111213331203 is a deficient number, since it is larger than the sum of its proper divisors (63325562109).

111213331203 is a wasteful number, since it uses less digits than its factorization.

111213331203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5411115.

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 111213331203 its reverse (302133312111), we get a palindrome (413346643314).

The spelling of 111213331203 in words is "one hundred eleven billion, two hundred thirteen million, three hundred thirty-one thousand, two hundred three".