205011301200 has 60 divisors (see below), whose sum is σ = 656719538688. Its totient is φ = 54669680000.

The previous prime is 205011301171. The next prime is 205011301217. The reversal of 205011301200 is 2103110502.

205011301200 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 205011301200.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 85420176 + ... + 85422575.

Almost surely, 2^205011301200 is an apocalyptic number.

205011301200 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

205011301200 is an abundant number, since it is smaller than the sum of its proper divisors (451708237488).

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

205011301200 is a wasteful number, since it uses less digits than its factorization.

205011301200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170842772 (or 170842761 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 15.

Adding to 205011301200 its reverse (2103110502), we get a palindrome (207114411702).

The spelling of 205011301200 in words is "two hundred five billion, eleven million, three hundred one thousand, two hundred".