20113110102103 has 4 divisors (see below), whose sum is σ = 20114681574400. Its totient is φ = 20111538629808.

The previous prime is 20113110102079. The next prime is 20113110102121. The reversal of 20113110102103 is 30120101131102.

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-20113110102103 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 (20113110102193) 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, 785716950 + ... + 785742547.

It is an arithmetic number, because the mean of its divisors is an integer number (5028670393600).

Almost surely, 2^{20113110102103} is an apocalyptic number.

20113110102103 is a deficient number, since it is larger than the sum of its proper divisors (1571472297).

20113110102103 is a wasteful number, since it uses less digits than its factorization.

20113110102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1571472296.

The product of its (nonzero) digits is 36, while the sum is 16.

Adding to 20113110102103 its reverse (30120101131102), we get a palindrome (50233211233205).

The spelling of 20113110102103 in words is "twenty trillion, one hundred thirteen billion, one hundred ten million, one hundred two thousand, one hundred three".