1103011002003 has 16 divisors (see below), whose sum is σ = 1482247717632. Its totient is φ = 729560052000.

The previous prime is 1103011001927. The next prime is 1103011002013. The reversal of 1103011002003 is 3002001103011.

It is not a de Polignac number, because 1103011002003 - 2¹⁴ = 1103010985619 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1103011002003.

It is not an unprimeable number, because it can be changed into a prime (1103011002013) 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, 1406073 + ... + 2045253.

It is an arithmetic number, because the mean of its divisors is an integer number (92640482352).

Almost surely, 2^{1103011002003} is an apocalyptic number.

1103011002003 is a deficient number, since it is larger than the sum of its proper divisors (379236715629).

1103011002003 is a wasteful number, since it uses less digits than its factorization.

1103011002003 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 643706.

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 1103011002003 its reverse (3002001103011), we get a palindrome (4105012105014).

The spelling of 1103011002003 in words is "one trillion, one hundred three billion, eleven million, two thousand, three".