203042442120 has 128 divisors (see below), whose sum is σ = 710957260800. Its totient is φ = 45422251776.

The previous prime is 203042442011. The next prime is 203042442143. The reversal of 203042442120 is 21244240302.

It is a Harshad number since it is a multiple of its sum of digits (24).

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, 2531980 + ... + 2610939.

It is an arithmetic number, because the mean of its divisors is an integer number (5554353600).

Almost surely, 2^203042442120 is an apocalyptic number.

203042442120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203042442120 is an abundant number, since it is smaller than the sum of its proper divisors (507914818680).

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

203042442120 is a wasteful number, since it uses less digits than its factorization.

203042442120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5142987 (or 5142983 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 24.

Adding to 203042442120 its reverse (21244240302), we get a palindrome (224286682422).

The spelling of 203042442120 in words is "two hundred three billion, forty-two million, four hundred forty-two thousand, one hundred twenty".