201441423 has 4 divisors (see below), whose sum is σ = 268588568. Its totient is φ = 134294280.

The previous prime is 201441421. The next prime is 201441469. The reversal of 201441423 is 324144102.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 201441423 - 2¹ = 201441421 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 201441423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (201441421) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 33573568 + ... + 33573573.

It is an arithmetic number, because the mean of its divisors is an integer number (67147142).

Almost surely, 2^201441423 is an apocalyptic number.

201441423 is a deficient number, since it is larger than the sum of its proper divisors (67147145).

201441423 is an equidigital number, since it uses as much as digits as its factorization.

201441423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 67147144.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 201441423 is about 14193.0061297810. The cubic root of 201441423 is about 586.2051014361.

Adding to 201441423 its reverse (324144102), we get a palindrome (525585525).

The spelling of 201441423 in words is "two hundred one million, four hundred forty-one thousand, four hundred twenty-three".