203124042 has 48 divisors (see below), whose sum is σ = 486907200. Its totient is φ = 60681600.

The previous prime is 203124013. The next prime is 203124071. The reversal of 203124042 is 240421302.

203124042 is digitally balanced in base 2 and base 3, because in such bases it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (203124013) and next prime (203124071).

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

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 6834 + ... + 21282.

It is an arithmetic number, because the mean of its divisors is an integer number (10143900).

Almost surely, 2^203124042 is an apocalyptic number.

203124042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 203124042, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (243453600).

203124042 is an abundant number, since it is smaller than the sum of its proper divisors (283783158).

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

203124042 is a wasteful number, since it uses less digits than its factorization.

203124042 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14539 (or 14536 counting only the distinct ones).

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

The square root of 203124042 is about 14252.1592048363. The cubic root of 203124042 is about 587.8327477939.

Adding to 203124042 its reverse (240421302), we get a palindrome (443545344).

The spelling of 203124042 in words is "two hundred three million, one hundred twenty-four thousand, forty-two".