201253015205 has 32 divisors (see below), whose sum is σ = 272628720000. Its totient is φ = 141274425600.

The previous prime is 201253015189. The next prime is 201253015213. The reversal of 201253015205 is 502510352102.

It is not a de Polignac number, because 201253015205 - 2⁴ = 201253015189 is a prime.

It is a super-2 number, since 2×201253015205² (a number of 23 digits) contains 22 as substring.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 5562875 + ... + 5598935.

It is an arithmetic number, because the mean of its divisors is an integer number (8519647500).

Almost surely, 2^201253015205 is an apocalyptic number.

It is an amenable number.

201253015205 is a deficient number, since it is larger than the sum of its proper divisors (71375704795).

201253015205 is a wasteful number, since it uses less digits than its factorization.

201253015205 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39605.

The product of its (nonzero) digits is 3000, while the sum is 26.

Adding to 201253015205 its reverse (502510352102), we get a palindrome (703763367307).

The spelling of 201253015205 in words is "two hundred one billion, two hundred fifty-three million, fifteen thousand, two hundred five".