203122312134 has 64 divisors (see below), whose sum is σ = 502049581056. Its totient is φ = 53458965504.

The previous prime is 203122312121. The next prime is 203122312223. The reversal of 203122312134 is 431213221302.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2992879 + ... + 3059994.

It is an arithmetic number, because the mean of its divisors is an integer number (7844524704).

Almost surely, 2^203122312134 is an apocalyptic number.

203122312134 is an abundant number, since it is smaller than the sum of its proper divisors (298927268922).

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

203122312134 is a wasteful number, since it uses less digits than its factorization.

203122312134 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6052949.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 203122312134 its reverse (431213221302), we get a palindrome (634335533436).

The spelling of 203122312134 in words is "two hundred three billion, one hundred twenty-two million, three hundred twelve thousand, one hundred thirty-four".