201031320132 has 36 divisors (see below), whose sum is σ = 516493042156. Its totient is φ = 65911907520.

The previous prime is 201031320121. The next prime is 201031320167. The reversal of 201031320132 is 231023130102.

201031320132 is a `hidden beast` number, since 201 + 0 + 313 + 20 + 132 = 666.

It can be written as a sum of positive squares in 2 ways, for example, as 94607917056 + 106423403076 = 307584^2 + 326226^2 .

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 45769963 + ... + 45774354.

Almost surely, 2^201031320132 is an apocalyptic number.

It is an amenable number.

201031320132 is an abundant number, since it is smaller than the sum of its proper divisors (315461722024).

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

201031320132 is a wasteful number, since it uses less digits than its factorization.

201031320132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 91544388 (or 91544383 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 201031320132 its reverse (231023130102), we get a palindrome (432054450234).

The spelling of 201031320132 in words is "two hundred one billion, thirty-one million, three hundred twenty thousand, one hundred thirty-two".