20050123134 has 16 divisors (see below), whose sum is σ = 40455117072. Its totient is φ = 6624229248.

The previous prime is 20050123129. The next prime is 20050123147. The reversal of 20050123134 is 43132105002.

It is a self number, because there is not a number n which added to its sum of digits gives 20050123134.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14785549 + ... + 14786904.

It is an arithmetic number, because the mean of its divisors is an integer number (2528444817).

Almost surely, 2^20050123134 is an apocalyptic number.

20050123134 is an abundant number, since it is smaller than the sum of its proper divisors (20404993938).

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

20050123134 is a wasteful number, since it uses less digits than its factorization.

20050123134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29572571.

The product of its (nonzero) digits is 720, while the sum is 21.

Adding to 20050123134 its reverse (43132105002), we get a palindrome (63182228136).

The spelling of 20050123134 in words is "twenty billion, fifty million, one hundred twenty-three thousand, one hundred thirty-four".