203134243220 has 48 divisors (see below), whose sum is σ = 428066856000. Its totient is φ = 80971080960.

The previous prime is 203134243201. The next prime is 203134243321. The reversal of 203134243220 is 22342431302.

It is a self number, because there is not a number n which added to its sum of digits gives 203134243220.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17861696 + ... + 17873064.

It is an arithmetic number, because the mean of its divisors is an integer number (8918059500).

Almost surely, 2^203134243220 is an apocalyptic number.

203134243220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203134243220 is an abundant number, since it is smaller than the sum of its proper divisors (224932612780).

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

203134243220 is a wasteful number, since it uses less digits than its factorization.

203134243220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14408 (or 14406 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 203134243220 its reverse (22342431302), we get a palindrome (225476674522).

The spelling of 203134243220 in words is "two hundred three billion, one hundred thirty-four million, two hundred forty-three thousand, two hundred twenty".