20123140213124 has 96 divisors (see below), whose sum is σ = 40508845977600. Its totient is φ = 8669243963520.

The previous prime is 20123140213061. The next prime is 20123140213157. The reversal of 20123140213124 is 42131204132102.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is a junction number, because it is equal to n+sod(n) for n = 20123140213093 and 20123140213102.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 109268729 + ... + 109452735.

It is an arithmetic number, because the mean of its divisors is an integer number (421967145600).

Almost surely, 2^{20123140213124} is an apocalyptic number.

It is an amenable number.

20123140213124 is an abundant number, since it is smaller than the sum of its proper divisors (20385705764476).

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

20123140213124 is a wasteful number, since it uses less digits than its factorization.

20123140213124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185673 (or 185671 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 26.

Adding to 20123140213124 its reverse (42131204132102), we get a palindrome (62254344345226).

The spelling of 20123140213124 in words is "twenty trillion, one hundred twenty-three billion, one hundred forty million, two hundred thirteen thousand, one hundred twenty-four".