1001103011103 has 32 divisors (see below), whose sum is σ = 1460997974016. Its totient is φ = 606060868608.

The previous prime is 1001103011057. The next prime is 1001103011107. The reversal of 1001103011103 is 3011103011001.

It is not a de Polignac number, because 1001103011103 - 2⁹ = 1001103010591 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1001103011107) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 160551 + ... + 1424072.

It is an arithmetic number, because the mean of its divisors is an integer number (45656186688).

Almost surely, 2^{1001103011103} is an apocalyptic number.

1001103011103 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1001103011103 is a deficient number, since it is larger than the sum of its proper divisors (459894962913).

1001103011103 is a wasteful number, since it uses less digits than its factorization.

1001103011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1584903.

The product of its (nonzero) digits is 9, while the sum is 12.

Adding to 1001103011103 its reverse (3011103011001), we get a palindrome (4012206022104).

The spelling of 1001103011103 in words is "one trillion, one billion, one hundred three million, eleven thousand, one hundred three".