201423520241 has 32 divisors (see below), whose sum is σ = 216488954880. Its totient is φ = 186984806400.

The previous prime is 201423520237. The next prime is 201423520253. The reversal of 201423520241 is 142025324102.

It is a cyclic number.

It is not a de Polignac number, because 201423520241 - 2² = 201423520237 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 201423520241.

It is not an unprimeable number, because it can be changed into a prime (201423520231) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 155298905 + ... + 155300201.

It is an arithmetic number, because the mean of its divisors is an integer number (6765279840).

Almost surely, 2^201423520241 is an apocalyptic number.

It is an amenable number.

201423520241 is a deficient number, since it is larger than the sum of its proper divisors (15065434639).

201423520241 is a wasteful number, since it uses less digits than its factorization.

201423520241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2345.

The product of its (nonzero) digits is 3840, while the sum is 26.

Adding to 201423520241 its reverse (142025324102), we get a palindrome (343448844343).

The spelling of 201423520241 in words is "two hundred one billion, four hundred twenty-three million, five hundred twenty thousand, two hundred forty-one".