201241423 has 2 divisors, whose sum is σ = 201241424. Its totient is φ = 201241422.

The previous prime is 201241387. The next prime is 201241441. The reversal of 201241423 is 324142102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201241423 - 2⁹ = 201240911 is a prime.

It is a super-2 number, since 2×201241423² = 80996220662129858, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 201241423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201241463) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100620711 + 100620712.

It is an arithmetic number, because the mean of its divisors is an integer number (100620712).

Almost surely, 2^201241423 is an apocalyptic number.

201241423 is a deficient number, since it is larger than the sum of its proper divisors (1).

201241423 is an equidigital number, since it uses as much as digits as its factorization.

201241423 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 384, while the sum is 19.

The square root of 201241423 is about 14185.9586563616. The cubic root of 201241423 is about 586.0110337006.

Adding to 201241423 its reverse (324142102), we get a palindrome (525383525).

The spelling of 201241423 in words is "two hundred one million, two hundred forty-one thousand, four hundred twenty-three".