20100220011103 has 4 divisors (see below), whose sum is σ = 20100229000488. Its totient is φ = 20100211021720.

The previous prime is 20100220011101. The next prime is 20100220011127. The reversal of 20100220011103 is 30111002200102.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 20100220011103 - 2¹ = 20100220011101 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 (20100220011101) 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, 1768200 + ... + 6582322.

It is an arithmetic number, because the mean of its divisors is an integer number (5025057250122).

Almost surely, 2^{20100220011103} is an apocalyptic number.

20100220011103 is a deficient number, since it is larger than the sum of its proper divisors (8989385).

20100220011103 is an equidigital number, since it uses as much as digits as its factorization.

20100220011103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8989384.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 20100220011103 its reverse (30111002200102), we get a palindrome (50211222211205).

The spelling of 20100220011103 in words is "twenty trillion, one hundred billion, two hundred twenty million, eleven thousand, one hundred three".