201005231040 has 168 divisors, whose sum is σ = 732043494000. Its totient is φ = 50448359424.

The previous prime is 201005231003. The next prime is 201005231047. The reversal of 201005231040 is 40132500102.

201005231040 is a `hidden beast` number, since 2 + 0 + 100 + 523 + 1 + 0 + 40 = 666.

201005231040 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201005231047) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 2003790 + ... + 2101709.

It is an arithmetic number, because the mean of its divisors is an integer number (4357401750).

Almost surely, 2^201005231040 is an apocalyptic number.

201005231040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

201005231040 is an abundant number, since it is smaller than the sum of its proper divisors (531038262960).

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

201005231040 is a wasteful number, since it uses less digits than its factorization.

201005231040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4105539 (or 4105526 counting only the distinct ones).

The product of its (nonzero) digits is 240, while the sum is 18.

Adding to 201005231040 its reverse (40132500102), we get a palindrome (241137731142).

The spelling of 201005231040 in words is "two hundred one billion, five million, two hundred thirty-one thousand, forty".