201085135530 has 32 divisors (see below), whose sum is σ = 482616619200. Its totient is φ = 53621336832.

The previous prime is 201085135523. The next prime is 201085135619. The reversal of 201085135530 is 35531580102.

It is a super-2 number, since 2×201085135530² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 201085135491 and 201085135500.

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, 1780281 + ... + 1889859.

It is an arithmetic number, because the mean of its divisors is an integer number (15081769350).

Almost surely, 2^201085135530 is an apocalyptic number.

201085135530 is an abundant number, since it is smaller than the sum of its proper divisors (281531483670).

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

201085135530 is a wasteful number, since it uses less digits than its factorization.

201085135530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 170758.

The product of its (nonzero) digits is 18000, while the sum is 33.

The spelling of 201085135530 in words is "two hundred one billion, eighty-five million, one hundred thirty-five thousand, five hundred thirty".