203311042 has 8 divisors (see below), whose sum is σ = 332690832. Its totient is φ = 92414100.

The previous prime is 203311019. The next prime is 203311079. The reversal of 203311042 is 240113302.

It is a happy number.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4620684 + ... + 4620727.

It is an arithmetic number, because the mean of its divisors is an integer number (41586354).

Almost surely, 2^203311042 is an apocalyptic number.

203311042 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203311042 is a deficient number, since it is larger than the sum of its proper divisors (129379790).

203311042 is a wasteful number, since it uses less digits than its factorization.

203311042 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9241424.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 203311042 is about 14258.7181050752. The cubic root of 203311042 is about 588.0130826065.

Adding to 203311042 its reverse (240113302), we get a palindrome (443424344).

The spelling of 203311042 in words is "two hundred three million, three hundred eleven thousand, forty-two".