20111303022103 has 4 divisors (see below), whose sum is σ = 20111312073960. Its totient is φ = 20111293970248.

The previous prime is 20111303022091. The next prime is 20111303022113. The reversal of 20111303022103 is 30122030311102.

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 20111303022103 - 2⁵ = 20111303022071 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 (20111303022113) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1347201 + ... + 6483637.

It is an arithmetic number, because the mean of its divisors is an integer number (5027828018490).

Almost surely, 2^{20111303022103} is an apocalyptic number.

20111303022103 is a deficient number, since it is larger than the sum of its proper divisors (9051857).

20111303022103 is an equidigital number, since it uses as much as digits as its factorization.

20111303022103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9051856.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 20111303022103 its reverse (30122030311102), we get a palindrome (50233333333205).

The spelling of 20111303022103 in words is "twenty trillion, one hundred eleven billion, three hundred three million, twenty-two thousand, one hundred three".