20203203434 has 8 divisors (see below), whose sum is σ = 30543426048. Its totient is φ = 10022061420.

The previous prime is 20203203421. The next prime is 20203203439. The reversal of 20203203434 is 43430230202.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (20203203439) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39769832 + ... + 39770339.

It is an arithmetic number, because the mean of its divisors is an integer number (3817928256).

Almost surely, 2^20203203434 is an apocalyptic number.

20203203434 is a deficient number, since it is larger than the sum of its proper divisors (10340222614).

20203203434 is a wasteful number, since it uses less digits than its factorization.

20203203434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 79540300.

The product of its (nonzero) digits is 3456, while the sum is 23.

Adding to 20203203434 its reverse (43430230202), we get a palindrome (63633433636).

The spelling of 20203203434 in words is "twenty billion, two hundred three million, two hundred three thousand, four hundred thirty-four".