203312134 has 32 divisors (see below), whose sum is σ = 328224960. Its totient is φ = 94228992.

The previous prime is 203312117. The next prime is 203312147. The reversal of 203312134 is 431213302.

It is a congruent 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 15 ways as a sum of consecutive naturals, for example, 216514 + ... + 217450.

It is an arithmetic number, because the mean of its divisors is an integer number (10257030).

Almost surely, 2^203312134 is an apocalyptic number.

203312134 is a deficient number, since it is larger than the sum of its proper divisors (124912826).

203312134 is a wasteful number, since it uses less digits than its factorization.

203312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1104.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 203312134 is about 14258.7563973861. The cubic root of 203312134 is about 588.0141353598.

Adding to 203312134 its reverse (431213302), we get a palindrome (634525436).

The spelling of 203312134 in words is "two hundred three million, three hundred twelve thousand, one hundred thirty-four".