663101323 has 12 divisors (see below), whose sum is σ = 695518488. Its totient is φ = 631811040.

The previous prime is 663101321. The next prime is 663101347. The reversal of 663101323 is 323101366.

It is not a de Polignac number, because 663101323 - 2¹ = 663101321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (663101321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71436 + ... + 80182.

It is an arithmetic number, because the mean of its divisors is an integer number (57959874).

Almost surely, 2^663101323 is an apocalyptic number.

663101323 is a deficient number, since it is larger than the sum of its proper divisors (32417165).

663101323 is an equidigital number, since it uses as much as digits as its factorization.

663101323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8874 (or 8831 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 25.

The square root of 663101323 is about 25750.7538336259. The cubic root of 663101323 is about 872.0203730020.

Adding to 663101323 its reverse (323101366), we get a palindrome (986202689).

The spelling of 663101323 in words is "six hundred sixty-three million, one hundred one thousand, three hundred twenty-three".