20111001102103 has 8 divisors (see below), whose sum is σ = 20298479279760. Its totient is φ = 19923576989760.

The previous prime is 20111001102007. The next prime is 20111001102113. The reversal of 20111001102103 is 30120110011102.

It is a happy number.

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

It is a cyclic number.

It is not a de Polignac number, because 20111001102103 - 2²⁹ = 20110464231191 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 (20111001102113) 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, 12768718 + ... + 14257003.

It is an arithmetic number, because the mean of its divisors is an integer number (2537309909970).

Almost surely, 2^{20111001102103} is an apocalyptic number.

20111001102103 is a deficient number, since it is larger than the sum of its proper divisors (187478177657).

20111001102103 is a wasteful number, since it uses less digits than its factorization.

20111001102103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27032657.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 20111001102103 its reverse (30120110011102), we get a palindrome (50231111113205).

The spelling of 20111001102103 in words is "twenty trillion, one hundred eleven billion, one million, one hundred two thousand, one hundred three".