20113433244123 has 4 divisors (see below), whose sum is σ = 26817910992168. Its totient is φ = 13408955496080.

The previous prime is 20113433244067. The next prime is 20113433244253. The reversal of 20113433244123 is 32144233431102.

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 20113433244123 - 2⁶ = 20113433244059 is a prime.

It is a super-2 number, since 2×20113433244123² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20113433240123) 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, 3352238874018 + ... + 3352238874023.

It is an arithmetic number, because the mean of its divisors is an integer number (6704477748042).

Almost surely, 2^{20113433244123} is an apocalyptic number.

20113433244123 is a deficient number, since it is larger than the sum of its proper divisors (6704477748045).

20113433244123 is an equidigital number, since it uses as much as digits as its factorization.

20113433244123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6704477748044.

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 20113433244123 its reverse (32144233431102), we get a palindrome (52257666675225).

The spelling of 20113433244123 in words is "twenty trillion, one hundred thirteen billion, four hundred thirty-three million, two hundred forty-four thousand, one hundred twenty-three".