20134021143 has 16 divisors (see below), whose sum is σ = 27739430912. Its totient is φ = 12976524000.

The previous prime is 20134021097. The next prime is 20134021153. The reversal of 20134021143 is 34112043102.

It is not a de Polignac number, because 20134021143 - 2⁶ = 20134021079 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20134021153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17068 + ... + 201393.

It is an arithmetic number, because the mean of its divisors is an integer number (1733714432).

Almost surely, 2^20134021143 is an apocalyptic number.

20134021143 is a deficient number, since it is larger than the sum of its proper divisors (7605409769).

20134021143 is a wasteful number, since it uses less digits than its factorization.

20134021143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 219486.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20134021143 its reverse (34112043102), we get a palindrome (54246064245).

The spelling of 20134021143 in words is "twenty billion, one hundred thirty-four million, twenty-one thousand, one hundred forty-three".