1100111212203 has 8 divisors (see below), whose sum is σ = 1478012010816. Its totient is φ = 727808944200.

The previous prime is 1100111212181. The next prime is 1100111212217. The reversal of 1100111212203 is 3022121110011.

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

It is not a de Polignac number, because 1100111212203 - 2¹⁴ = 1100111195819 is a prime.

It is a super-3 number, since 3×1100111212203³ (a number of 37 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is not an unprimeable number, because it can be changed into a prime (1100111213203) 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, 1399632193 + ... + 1399632978.

It is an arithmetic number, because the mean of its divisors is an integer number (184751501352).

Almost surely, 2^{1100111212203} is an apocalyptic number.

1100111212203 is a deficient number, since it is larger than the sum of its proper divisors (377900798613).

1100111212203 is a wasteful number, since it uses less digits than its factorization.

1100111212203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2799265305.

The product of its (nonzero) digits is 24, while the sum is 15.

Adding to 1100111212203 its reverse (3022121110011), we get a palindrome (4122232322214).

The spelling of 1100111212203 in words is "one trillion, one hundred billion, one hundred eleven million, two hundred twelve thousand, two hundred three".