203011220434 has 32 divisors (see below), whose sum is σ = 337707706752. Its totient is φ = 90748512000.

The previous prime is 203011220429. The next prime is 203011220441. The reversal of 203011220434 is 434022110302.

203011220434 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10104619 + ... + 10124689.

It is an arithmetic number, because the mean of its divisors is an integer number (10553365836).

Almost surely, 2^203011220434 is an apocalyptic number.

203011220434 is a deficient number, since it is larger than the sum of its proper divisors (134696486318).

203011220434 is a wasteful number, since it uses less digits than its factorization.

203011220434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27682.

The product of its (nonzero) digits is 1152, while the sum is 22.

Adding to 203011220434 its reverse (434022110302), we get a palindrome (637033330736).

The spelling of 203011220434 in words is "two hundred three billion, eleven million, two hundred twenty thousand, four hundred thirty-four".