203042423120 has 40 divisors (see below), whose sum is σ = 492598578816. Its totient is φ = 77685795968.

The previous prime is 203042423063. The next prime is 203042423147. The reversal of 203042423120 is 21324240302.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×203042423120² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 55172732 + ... + 55176411.

Almost surely, 2^203042423120 is an apocalyptic number.

203042423120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

203042423120 is an abundant number, since it is smaller than the sum of its proper divisors (289556155696).

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

203042423120 is a wasteful number, since it uses less digits than its factorization.

203042423120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 110349179 (or 110349173 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 203042423120 its reverse (21324240302), we get a palindrome (224366663422).

The spelling of 203042423120 in words is "two hundred three billion, forty-two million, four hundred twenty-three thousand, one hundred twenty".