1111001121203 has 4 divisors (see below), whose sum is σ = 1111006824600. Its totient is φ = 1110995417808.

The previous prime is 1111001121151. The next prime is 1111001121221. The reversal of 1111001121203 is 3021211001111.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1111001121203 - 2³² = 1106706153907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111001121803) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2548778 + ... + 2952671.

It is an arithmetic number, because the mean of its divisors is an integer number (277751706150).

Almost surely, 2^{1111001121203} is an apocalyptic number.

1111001121203 is a deficient number, since it is larger than the sum of its proper divisors (5703397).

1111001121203 is an equidigital number, since it uses as much as digits as its factorization.

1111001121203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5703396.

The product of its (nonzero) digits is 12, while the sum is 14.

Adding to 1111001121203 its reverse (3021211001111), we get a palindrome (4132212122314).

The spelling of 1111001121203 in words is "one trillion, one hundred eleven billion, one million, one hundred twenty-one thousand, two hundred three".