201326663 has 2 divisors, whose sum is σ = 201326664. Its totient is φ = 201326662.

The previous prime is 201326621. The next prime is 201326689. The reversal of 201326663 is 366623102.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 201326663 - 2¹⁰ = 201325639 is a prime.

It is equal to p_11148383 and since 201326663 and 11148383 have the same sum of digits, it is a Honaker prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (201326063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 100663331 + 100663332.

It is an arithmetic number, because the mean of its divisors is an integer number (100663332).

Almost surely, 2^201326663 is an apocalyptic number.

201326663 is a deficient number, since it is larger than the sum of its proper divisors (1).

201326663 is an equidigital number, since it uses as much as digits as its factorization.

201326663 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 29.

The square root of 201326663 is about 14188.9627175492. The cubic root of 201326663 is about 586.0937610847.

Adding to 201326663 its reverse (366623102), we get a palindrome (567949765).

The spelling of 201326663 in words is "two hundred one million, three hundred twenty-six thousand, six hundred sixty-three".