203231442 has 8 divisors (see below), whose sum is σ = 406462896. Its totient is φ = 67743812.

The previous prime is 203231423. The next prime is 203231461. The reversal of 203231442 is 244132302.

It is an interprime number because it is at equal distance from previous prime (203231423) and next prime (203231461).

It is a sphenic number, since it is the product of 3 distinct primes.

203231442 is an admirable number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16935948 + ... + 16935959.

It is an arithmetic number, because the mean of its divisors is an integer number (50807862).

Almost surely, 2^203231442 is an apocalyptic number.

203231442 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

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

203231442 is a wasteful number, since it uses less digits than its factorization.

203231442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33871912.

The product of its (nonzero) digits is 1152, while the sum is 21.

The square root of 203231442 is about 14255.9265570499. The cubic root of 203231442 is about 587.9363332890.

Adding to 203231442 its reverse (244132302), we get a palindrome (447363744).

The spelling of 203231442 in words is "two hundred three million, two hundred thirty-one thousand, four hundred forty-two".