205352505124 has 48 divisors (see below), whose sum is σ = 403911970560. Its totient is φ = 90640471680.

The previous prime is 205352505109. The next prime is 205352505131. The reversal of 205352505124 is 421505253502.

205352505124 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a self number, because there is not a number n which added to its sum of digits gives 205352505124.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 8205222 + ... + 8230210.

It is an arithmetic number, because the mean of its divisors is an integer number (8414832720).

Almost surely, 2^205352505124 is an apocalyptic number.

It is an amenable number.

205352505124 is a deficient number, since it is larger than the sum of its proper divisors (198559465436).

205352505124 is a wasteful number, since it uses less digits than its factorization.

205352505124 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31900 (or 31898 counting only the distinct ones).

The product of its (nonzero) digits is 60000, while the sum is 34.

Adding to 205352505124 its reverse (421505253502), we get a palindrome (626857758626).

The spelling of 205352505124 in words is "two hundred five billion, three hundred fifty-two million, five hundred five thousand, one hundred twenty-four".