203120044140 has 96 divisors (see below), whose sum is σ = 612823873536. Its totient is φ = 49971121920.

The previous prime is 203120044123. The next prime is 203120044157. The reversal of 203120044140 is 41440021302.

It is an interprime number because it is at equal distance from previous prime (203120044123) and next prime (203120044157).

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1357069 + ... + 1499291.

It is an arithmetic number, because the mean of its divisors is an integer number (6383582016).

Almost surely, 2^203120044140 is an apocalyptic number.

203120044140 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 203120044140, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (306411936768).

203120044140 is an abundant number, since it is smaller than the sum of its proper divisors (409703829396).

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

203120044140 is a wasteful number, since it uses less digits than its factorization.

203120044140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144079 (or 144077 counting only the distinct ones).

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 203120044140 its reverse (41440021302), we get a palindrome (244560065442).

The spelling of 203120044140 in words is "two hundred three billion, one hundred twenty million, forty-four thousand, one hundred forty".