20011110100103 has 2 divisors, whose sum is σ = 20011110100104. Its totient is φ = 20011110100102.

The previous prime is 20011110100081. The next prime is 20011110100127. The reversal of 20011110100103 is 30100101111002.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20011110100103 - 2⁸ = 20011110099847 is a prime.

It is a super-2 number, since 2×20011110100103² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20011110100133) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10005555050051 + 10005555050052.

It is an arithmetic number, because the mean of its divisors is an integer number (10005555050052).

Almost surely, 2^{20011110100103} is an apocalyptic number.

20011110100103 is a deficient number, since it is larger than the sum of its proper divisors (1).

20011110100103 is an equidigital number, since it uses as much as digits as its factorization.

20011110100103 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 6, while the sum is 11.

Adding to 20011110100103 its reverse (30100101111002), we get a palindrome (50111211211105).

The spelling of 20011110100103 in words is "twenty trillion, eleven billion, one hundred ten million, one hundred thousand, one hundred three".