1100001000103 has 4 divisors (see below), whose sum is σ = 1120755736008. Its totient is φ = 1079246264200.

The previous prime is 1100001000031. The next prime is 1100001000113. The reversal of 1100001000103 is 3010001000011.

It is a happy number.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1100001000103 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1100001000113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10377367873 + ... + 10377367978.

It is an arithmetic number, because the mean of its divisors is an integer number (280188934002).

Almost surely, 2^{1100001000103} is an apocalyptic number.

1100001000103 is a deficient number, since it is larger than the sum of its proper divisors (20754735905).

1100001000103 is an equidigital number, since it uses as much as digits as its factorization.

1100001000103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20754735904.

The product of its (nonzero) digits is 3, while the sum is 7.

Adding to 1100001000103 its reverse (3010001000011), we get a palindrome (4110002000114).

The spelling of 1100001000103 in words is "one trillion, one hundred billion, one million, one hundred three", and thus it is an aban number.