203404234140 has 72 divisors (see below), whose sum is σ = 617657498640. Its totient is φ = 54182697984.

The previous prime is 203404234129. The next prime is 203404234141. The reversal of 203404234140 is 41432404302.

It is a happy number.

203404234140 is a `hidden beast` number, since 20 + 3 + 404 + 234 + 1 + 4 + 0 = 666.

203404234140 is digitally balanced in base 7, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203404234141) 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 23 ways as a sum of consecutive naturals, for example, 440974 + ... + 775413.

It is an arithmetic number, because the mean of its divisors is an integer number (8578576370).

Almost surely, 2^203404234140 is an apocalyptic number.

203404234140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203404234140 is an abundant number, since it is smaller than the sum of its proper divisors (414253264500).

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

203404234140 is a wasteful number, since it uses less digits than its factorization.

203404234140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1217331 (or 1217326 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 203404234140 its reverse (41432404302), we get a palindrome (244836638442).

The spelling of 203404234140 in words is "two hundred three billion, four hundred four million, two hundred thirty-four thousand, one hundred forty".