201423320611 has 2 divisors, whose sum is σ = 201423320612. Its totient is φ = 201423320610.

The previous prime is 201423320587. The next prime is 201423320627. The reversal of 201423320611 is 116023324102.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-201423320611 is a prime.

It is not a weakly prime, because it can be changed into another prime (201423320641) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100711660305 + 100711660306.

It is an arithmetic number, because the mean of its divisors is an integer number (100711660306).

Almost surely, 2^201423320611 is an apocalyptic number.

201423320611 is a deficient number, since it is larger than the sum of its proper divisors (1).

201423320611 is an equidigital number, since it uses as much as digits as its factorization.

201423320611 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 201423320611 its reverse (116023324102), we get a palindrome (317446644713).

The spelling of 201423320611 in words is "two hundred one billion, four hundred twenty-three million, three hundred twenty thousand, six hundred eleven".