205241244124 has 24 divisors (see below), whose sum is σ = 421576611680. Its totient is φ = 85583221056.

The previous prime is 205241244097. The next prime is 205241244163. The reversal of 205241244124 is 421442142502.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99053619 + ... + 99055690.

Almost surely, 2^205241244124 is an apocalyptic number.

It is an amenable number.

205241244124 is an abundant number, since it is smaller than the sum of its proper divisors (216335367556).

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

205241244124 is a wasteful number, since it uses less digits than its factorization.

205241244124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 198109357 (or 198109355 counting only the distinct ones).

The product of its (nonzero) digits is 20480, while the sum is 31.

Adding to 205241244124 its reverse (421442142502), we get a palindrome (626683386626).

The spelling of 205241244124 in words is "two hundred five billion, two hundred forty-one million, two hundred forty-four thousand, one hundred twenty-four".