203042124 has 18 divisors (see below), whose sum is σ = 513245460. Its totient is φ = 67680696.

The previous prime is 203042123. The next prime is 203042131. The reversal of 203042124 is 421240302.

It is a tau number, because it is divible by the number of its divisors (18).

It is a super-3 number, since 3×203042124³ (a number of 26 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 203042097 and 203042106.

It is not an unprimeable number, because it can be changed into a prime (203042123) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 2819994 + ... + 2820065.

Almost surely, 2^203042124 is an apocalyptic number.

It is an amenable number.

203042124 is an abundant number, since it is smaller than the sum of its proper divisors (310203336).

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

203042124 is a wasteful number, since it uses less digits than its factorization.

203042124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5640069 (or 5640064 counting only the distinct ones).

The product of its (nonzero) digits is 384, while the sum is 18.

The square root of 203042124 is about 14249.2850346956. The cubic root of 203042124 is about 587.7537147109.

Adding to 203042124 its reverse (421240302), we get a palindrome (624282426).

The spelling of 203042124 in words is "two hundred three million, forty-two thousand, one hundred twenty-four".