111211103113203 has 16 divisors (see below), whose sum is σ = 149805068940800. Its totient is φ = 73379743772544.

The previous prime is 111211103113193. The next prime is 111211103113223. The reversal of 111211103113203 is 302311301112111.

It is not a de Polignac number, because 111211103113203 - 2⁵ = 111211103113171 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 111211103113203.

It is not an unprimeable number, because it can be changed into a prime (111211103113223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 100376278 + ... + 101478171.

It is an arithmetic number, because the mean of its divisors is an integer number (9362816808800).

Almost surely, 2^{111211103113203} is an apocalyptic number.

111211103113203 is a deficient number, since it is larger than the sum of its proper divisors (38593965827597).

111211103113203 is a wasteful number, since it uses less digits than its factorization.

111211103113203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 201856338.

The product of its (nonzero) digits is 108, while the sum is 21.

Adding to 111211103113203 its reverse (302311301112111), we get a palindrome (413522404225314).

The spelling of 111211103113203 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred three million, one hundred thirteen thousand, two hundred three".