20124110423203 has 4 divisors (see below), whose sum is σ = 20125989611280. Its totient is φ = 20122231235128.

The previous prime is 20124110423113. The next prime is 20124110423233. The reversal of 20124110423203 is 30232401142102.

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 20124110423203 - 2¹⁷ = 20124110292131 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20124110423233) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 939577975 + ... + 939599392.

It is an arithmetic number, because the mean of its divisors is an integer number (5031497402820).

Almost surely, 2^{20124110423203} is an apocalyptic number.

20124110423203 is a deficient number, since it is larger than the sum of its proper divisors (1879188077).

20124110423203 is a wasteful number, since it uses less digits than its factorization.

20124110423203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1879188076.

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 20124110423203 its reverse (30232401142102), we get a palindrome (50356511565305).

The spelling of 20124110423203 in words is "twenty trillion, one hundred twenty-four billion, one hundred ten million, four hundred twenty-three thousand, two hundred three".