20004031234 has 16 divisors (see below), whose sum is σ = 32934696480. Its totient is φ = 9036956160.

The previous prime is 20004031219. The next prime is 20004031237. The reversal of 20004031234 is 43213040002.

It is a super-2 number, since 2×20004031234² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20004031237) 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 7 ways as a sum of consecutive naturals, for example, 2785599 + ... + 2792770.

It is an arithmetic number, because the mean of its divisors is an integer number (2058418530).

Almost surely, 2^20004031234 is an apocalyptic number.

20004031234 is a deficient number, since it is larger than the sum of its proper divisors (12930665246).

20004031234 is a wasteful number, since it uses less digits than its factorization.

20004031234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5578545.

The product of its (nonzero) digits is 576, while the sum is 19.

Adding to 20004031234 its reverse (43213040002), we get a palindrome (63217071236).

The spelling of 20004031234 in words is "twenty billion, four million, thirty-one thousand, two hundred thirty-four".