20123113013106 has 128 divisors (see below), whose sum is σ = 42019959002112. Its totient is φ = 6419855232000.

The previous prime is 20123113013099. The next prime is 20123113013149. The reversal of 20123113013106 is 60131031132102.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1205618221 + ... + 1205634911.

It is an arithmetic number, because the mean of its divisors is an integer number (328280929704).

Almost surely, 2^{20123113013106} is an apocalyptic number.

20123113013106 is an abundant number, since it is smaller than the sum of its proper divisors (21896845989006).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20123113013106 is a wasteful number, since it uses less digits than its factorization.

20123113013106 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17288.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 20123113013106 its reverse (60131031132102), we get a palindrome (80254144145208).

The spelling of 20123113013106 in words is "twenty trillion, one hundred twenty-three billion, one hundred thirteen million, thirteen thousand, one hundred six".