203035140240 has 80 divisors (see below), whose sum is σ = 629884232448. Its totient is φ = 54101818368.

The previous prime is 203035140233. The next prime is 203035140241. The reversal of 203035140240 is 42041530302.

203035140240 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (80).

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 203035140240.

It is not an unprimeable number, because it can be changed into a prime (203035140241) 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 15 ways as a sum of consecutive naturals, for example, 277 + ... + 637236.

Almost surely, 2^203035140240 is an apocalyptic number.

203035140240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203035140240 is an abundant number, since it is smaller than the sum of its proper divisors (426849092208).

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

203035140240 is a wasteful number, since it uses less digits than its factorization.

203035140240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 638856 (or 638850 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 24.

Adding to 203035140240 its reverse (42041530302), we get a palindrome (245076670542).

The spelling of 203035140240 in words is "two hundred three billion, thirty-five million, one hundred forty thousand, two hundred forty".