20052544123 has 16 divisors (see below), whose sum is σ = 21475317024. Its totient is φ = 18657239040.

The previous prime is 20052544097. The next prime is 20052544139. The reversal of 20052544123 is 32144525002.

It is a cyclic number.

It is not a de Polignac number, because 20052544123 - 2¹³ = 20052535931 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20052544091 and 20052544100.

It is not an unprimeable number, because it can be changed into a prime (20052544423) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1555183 + ... + 1568023.

It is an arithmetic number, because the mean of its divisors is an integer number (1342207314).

Almost surely, 2^20052544123 is an apocalyptic number.

20052544123 is a deficient number, since it is larger than the sum of its proper divisors (1422772901).

20052544123 is a wasteful number, since it uses less digits than its factorization.

20052544123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13902.

The product of its (nonzero) digits is 9600, while the sum is 28.

The spelling of 20052544123 in words is "twenty billion, fifty-two million, five hundred forty-four thousand, one hundred twenty-three".