20112113102303 has 4 divisors (see below), whose sum is σ = 20540030402400. Its totient is φ = 19684195802208.

The previous prime is 20112113102297. The next prime is 20112113102377. The reversal of 20112113102303 is 30320131121102.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20112113102303 - 2⁴ = 20112113102287 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 (20112113101303) 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, 213958649978 + ... + 213958650071.

It is an arithmetic number, because the mean of its divisors is an integer number (5135007600600).

Almost surely, 2^{20112113102303} is an apocalyptic number.

20112113102303 is a deficient number, since it is larger than the sum of its proper divisors (427917300097).

20112113102303 is an equidigital number, since it uses as much as digits as its factorization.

20112113102303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 427917300096.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 20112113102303 its reverse (30320131121102), we get a palindrome (50432244223405).

The spelling of 20112113102303 in words is "twenty trillion, one hundred twelve billion, one hundred thirteen million, one hundred two thousand, three hundred three".