111211113103203 has 8 divisors (see below), whose sum is σ = 148282729306816. Its totient is φ = 74140119484200.

The previous prime is 111211113103169. The next prime is 111211113103217. The reversal of 111211113103203 is 302301311112111.

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

It is not a de Polignac number, because 111211113103203 - 2²² = 111211108908899 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 111211113103203.

It is not an unprimeable number, because it can be changed into a prime (111211113103903) 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, 155229193 + ... + 155943978.

It is an arithmetic number, because the mean of its divisors is an integer number (18535341163352).

Almost surely, 2^{111211113103203} is an apocalyptic number.

111211113103203 is a deficient number, since it is larger than the sum of its proper divisors (37071616203613).

111211113103203 is a wasteful number, since it uses less digits than its factorization.

111211113103203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 311292305.

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

Adding to 111211113103203 its reverse (302301311112111), we get a palindrome (413512424215314).

The spelling of 111211113103203 in words is "one hundred eleven trillion, two hundred eleven billion, one hundred thirteen million, one hundred three thousand, two hundred three".