203134210440 has 128 divisors (see below), whose sum is σ = 702623842560. Its totient is φ = 46019764224.

The previous prime is 203134210399. The next prime is 203134210453. The reversal of 203134210440 is 44012431302.

203134210440 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 (24).

It is a self number, because there is not a number n which added to its sum of digits gives 203134210440.

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 31 ways as a sum of consecutive naturals, for example, 975109 + ... + 1164948.

It is an arithmetic number, because the mean of its divisors is an integer number (5489248770).

Almost surely, 2^203134210440 is an apocalyptic number.

203134210440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203134210440 is an abundant number, since it is smaller than the sum of its proper divisors (499489632120).

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

203134210440 is a wasteful number, since it uses less digits than its factorization.

203134210440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2140191 (or 2140187 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 203134210440 its reverse (44012431302), we get a palindrome (247146641742).

The spelling of 203134210440 in words is "two hundred three billion, one hundred thirty-four million, two hundred ten thousand, four hundred forty".