20050123452 has 12 divisors (see below), whose sum is σ = 46783621416. Its totient is φ = 6683374480.

The previous prime is 20050123451. The next prime is 20050123567. The reversal of 20050123452 is 25432105002.

It is a tau number, because it is divible by the number of its divisors (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20050123451) 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, 835421799 + ... + 835421822.

It is an arithmetic number, because the mean of its divisors is an integer number (3898635118).

Almost surely, 2^20050123452 is an apocalyptic number.

It is an amenable number.

20050123452 is an abundant number, since it is smaller than the sum of its proper divisors (26733497964).

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

20050123452 is a wasteful number, since it uses less digits than its factorization.

20050123452 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1670843628 (or 1670843626 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 20050123452 its reverse (25432105002), we get a palindrome (45482228454).

The spelling of 20050123452 in words is "twenty billion, fifty million, one hundred twenty-three thousand, four hundred fifty-two".