203401034042 has 16 divisors (see below), whose sum is σ = 305620413120. Its totient is φ = 101527620768.

The previous prime is 203401033981. The next prime is 203401034047. The reversal of 203401034042 is 240430104302.

It is a super-3 number, since 3×203401034042³ (a number of 35 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203401033999 and 203401034017.

It is not an unprimeable number, because it can be changed into a prime (203401034047) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9765203 + ... + 9786009.

It is an arithmetic number, because the mean of its divisors is an integer number (19101275820).

Almost surely, 2^203401034042 is an apocalyptic number.

203401034042 is a deficient number, since it is larger than the sum of its proper divisors (102219379078).

203401034042 is a wasteful number, since it uses less digits than its factorization.

203401034042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28885.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 203401034042 its reverse (240430104302), we get a palindrome (443831138344).

The spelling of 203401034042 in words is "two hundred three billion, four hundred one million, thirty-four thousand, forty-two".