20042343052 has 36 divisors (see below), whose sum is σ = 37496302144. Its totient is φ = 9371531520.

The previous prime is 20042343023. The next prime is 20042343071. The reversal of 20042343052 is 25034324002.

It is an unprimeable number.

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 11 ways as a sum of consecutive naturals, for example, 126277 + ... + 236707.

Almost surely, 2^20042343052 is an apocalyptic number.

It is an amenable number.

20042343052 is a deficient number, since it is larger than the sum of its proper divisors (17453959092).

20042343052 is a wasteful number, since it uses less digits than its factorization.

20042343052 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110626 (or 110607 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 25.

Adding to 20042343052 its reverse (25034324002), we get a palindrome (45076667054).

The spelling of 20042343052 in words is "twenty billion, forty-two million, three hundred forty-three thousand, fifty-two".