1000100001103 has 4 divisors (see below), whose sum is σ = 1142971429840. Its totient is φ = 857228572368.

The previous prime is 1000100001041. The next prime is 1000100001133. The reversal of 1000100001103 is 3011000010001.

It is a happy number.

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

It is a de Polignac number, because none of the positive numbers 2^k-1000100001103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (7), and also a Moran number because the ratio is a prime number: 142871428729 = 1000100001103 / (1 + 0 + 0 + 0 + 1 + 0 + 0 + 0 + 0 + 1 + 1 + 0 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1000100001133) 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, 71435714358 + ... + 71435714371.

It is an arithmetic number, because the mean of its divisors is an integer number (285742857460).

Almost surely, 2^{1000100001103} is an apocalyptic number.

1000100001103 is a deficient number, since it is larger than the sum of its proper divisors (142871428737).

1000100001103 is an equidigital number, since it uses as much as digits as its factorization.

1000100001103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142871428736.

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

Adding to 1000100001103 its reverse (3011000010001), we get a palindrome (4011100011104).

The spelling of 1000100001103 in words is "one trillion, one hundred million, one thousand, one hundred three".