201232434123 has 12 divisors (see below), whose sum is σ = 332193224688. Its totient is φ = 114989962320.

The previous prime is 201232434043. The next prime is 201232434163. The reversal of 201232434123 is 321434232102.

201232434123 is a `hidden beast` number, since 2 + 0 + 1 + 2 + 3 + 243 + 412 + 3 = 666.

It is not a de Polignac number, because 201232434123 - 2¹³ = 201232425931 is a prime.

It is not an unprimeable number, because it can be changed into a prime (201232434163) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1597082748 + ... + 1597082873.

It is an arithmetic number, because the mean of its divisors is an integer number (27682768724).

Almost surely, 2^201232434123 is an apocalyptic number.

201232434123 is a deficient number, since it is larger than the sum of its proper divisors (130960790565).

201232434123 is a wasteful number, since it uses less digits than its factorization.

201232434123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3194165634 (or 3194165631 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 201232434123 its reverse (321434232102), we get a palindrome (522666666225).

The spelling of 201232434123 in words is "two hundred one billion, two hundred thirty-two million, four hundred thirty-four thousand, one hundred twenty-three".