20134020004 has 12 divisors (see below), whose sum is σ = 40268040064. Its totient is φ = 8628865704.

The previous prime is 20134019981. The next prime is 20134020007. The reversal of 20134020004 is 40002043102.

20134020004 is an admirable number.

It is a self number, because there is not a number n which added to its sum of digits gives 20134020004.

It is not an unprimeable number, because it can be changed into a prime (20134020007) 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 3 ways as a sum of consecutive naturals, for example, 359536044 + ... + 359536099.

Almost surely, 2^20134020004 is an apocalyptic number.

It is an amenable number.

20134020004 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

20134020004 is a wasteful number, since it uses less digits than its factorization.

20134020004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 719072154 (or 719072152 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 16.

Adding to 20134020004 its reverse (40002043102), we get a palindrome (60136063106).

The spelling of 20134020004 in words is "twenty billion, one hundred thirty-four million, twenty thousand, four".