1111121042003 has 8 divisors (see below), whose sum is σ = 1274793682272. Its totient is φ = 948683667456.

The previous prime is 1111121041993. The next prime is 1111121042033. The reversal of 1111121042003 is 3002401211111.

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

It is not a de Polignac number, because 1111121042003 - 2⁸ = 1111121041747 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1111121042033) 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, 308814500 + ... + 308818097.

It is an arithmetic number, because the mean of its divisors is an integer number (159349210284).

Almost surely, 2^{1111121042003} is an apocalyptic number.

1111121042003 is a deficient number, since it is larger than the sum of its proper divisors (163672640269).

1111121042003 is an equidigital number, since it uses as much as digits as its factorization.

1111121042003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 617632861.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1111121042003 its reverse (3002401211111), we get a palindrome (4113522253114).

The spelling of 1111121042003 in words is "one trillion, one hundred eleven billion, one hundred twenty-one million, forty-two thousand, three".