203120134 has 32 divisors (see below), whose sum is σ = 353618496. Its totient is φ = 85708800.

The previous prime is 203120129. The next prime is 203120143. The reversal of 203120134 is 431021302.

It is a happy number.

It is a congruent number.

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 15 ways as a sum of consecutive naturals, for example, 506334 + ... + 506734.

It is an arithmetic number, because the mean of its divisors is an integer number (11050578).

Almost surely, 2^203120134 is an apocalyptic number.

203120134 is a deficient number, since it is larger than the sum of its proper divisors (150498362).

203120134 is a wasteful number, since it uses less digits than its factorization.

203120134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 880.

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

The square root of 203120134 is about 14252.0221021440. The cubic root of 203120134 is about 587.8289779052.

Adding to 203120134 its reverse (431021302), we get a palindrome (634141436).

The spelling of 203120134 in words is "two hundred three million, one hundred twenty thousand, one hundred thirty-four".