201340231021 has 8 divisors (see below), whose sum is σ = 201471379200. Its totient is φ = 201209128848.

The previous prime is 201340230953. The next prime is 201340231049. The reversal of 201340231021 is 120132043102.

It is a happy number.

201340231021 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 201340231021 - 2¹³ = 201340222829 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201340231021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201340231721) 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 7 ways as a sum of consecutive naturals, for example, 13163040 + ... + 13178326.

It is an arithmetic number, because the mean of its divisors is an integer number (25183922400).

Almost surely, 2^201340231021 is an apocalyptic number.

It is an amenable number.

201340231021 is a deficient number, since it is larger than the sum of its proper divisors (131148179).

201340231021 is a wasteful number, since it uses less digits than its factorization.

201340231021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23003.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 201340231021 its reverse (120132043102), we get a palindrome (321472274123).

The spelling of 201340231021 in words is "two hundred one billion, three hundred forty million, two hundred thirty-one thousand, twenty-one".