20203203234 has 16 divisors (see below), whose sum is σ = 42533059680. Its totient is φ = 6379958880.

The previous prime is 20203203179. The next prime is 20203203239. The reversal of 20203203234 is 43230230202.

It is a self number, because there is not a number n which added to its sum of digits gives 20203203234.

It is not an unprimeable number, because it can be changed into a prime (20203203239) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88610427 + ... + 88610654.

It is an arithmetic number, because the mean of its divisors is an integer number (2658316230).

Almost surely, 2^20203203234 is an apocalyptic number.

20203203234 is an abundant number, since it is smaller than the sum of its proper divisors (22329856446).

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

20203203234 is a wasteful number, since it uses less digits than its factorization.

20203203234 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177221105.

The product of its (nonzero) digits is 1728, while the sum is 21.

Adding to 20203203234 its reverse (43230230202), we get a palindrome (63433433436).

The spelling of 20203203234 in words is "twenty billion, two hundred three million, two hundred three thousand, two hundred thirty-four".