20043134430 has 32 divisors (see below), whose sum is σ = 52476571008. Its totient is φ = 4858941600.

The previous prime is 20043134429. The next prime is 20043134473. The reversal of 20043134430 is 3443134002.

It is a self number, because there is not a number n which added to its sum of digits gives 20043134430.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 30368056 + ... + 30368715.

It is an arithmetic number, because the mean of its divisors is an integer number (1639892844).

Almost surely, 2^20043134430 is an apocalyptic number.

20043134430 is an abundant number, since it is smaller than the sum of its proper divisors (32433436578).

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

20043134430 is a wasteful number, since it uses less digits than its factorization.

20043134430 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60736792.

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 20043134430 its reverse (3443134002), we get a palindrome (23486268432).

The spelling of 20043134430 in words is "twenty billion, forty-three million, one hundred thirty-four thousand, four hundred thirty".