20134442043 has 6 divisors (see below), whose sum is σ = 29083082964. Its totient is φ = 13422961356.

The previous prime is 20134442021. The next prime is 20134442051. The reversal of 20134442043 is 34024443102.

It is a happy number.

20134442043 is a `hidden beast` number, since 2 + 0 + 13 + 444 + 204 + 3 = 666.

It is not a de Polignac number, because 20134442043 - 2¹⁸ = 20134179899 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 20134441998 and 20134442016.

It is not an unprimeable number, because it can be changed into a prime (20134442093) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 1118580105 + ... + 1118580122.

It is an arithmetic number, because the mean of its divisors is an integer number (4847180494).

Almost surely, 2^20134442043 is an apocalyptic number.

20134442043 is a deficient number, since it is larger than the sum of its proper divisors (8948640921).

20134442043 is a wasteful number, since it uses less digits than its factorization.

20134442043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2237160233 (or 2237160230 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 20134442043 its reverse (34024443102), we get a palindrome (54158885145).

The spelling of 20134442043 in words is "twenty billion, one hundred thirty-four million, four hundred forty-two thousand, forty-three".