205231423524 has 12 divisors (see below), whose sum is σ = 478873321584. Its totient is φ = 68410474504.

The previous prime is 205231423519. The next prime is 205231423541. The reversal of 205231423524 is 425324132502.

It is a tau number, because it is divible by the number of its divisors (12).

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 3 ways as a sum of consecutive naturals, for example, 8551309302 + ... + 8551309325.

It is an arithmetic number, because the mean of its divisors is an integer number (39906110132).

Almost surely, 2^205231423524 is an apocalyptic number.

It is an amenable number.

205231423524 is an abundant number, since it is smaller than the sum of its proper divisors (273641898060).

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

205231423524 is a wasteful number, since it uses less digits than its factorization.

205231423524 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17102618634 (or 17102618632 counting only the distinct ones).

The product of its (nonzero) digits is 57600, while the sum is 33.

The spelling of 205231423524 in words is "two hundred five billion, two hundred thirty-one million, four hundred twenty-three thousand, five hundred twenty-four".