63311323 has 4 divisors (see below), whose sum is σ = 63343720. Its totient is φ = 63278928.

The previous prime is 63311299. The next prime is 63311327. The reversal of 63311323 is 32311336.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-63311323 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63311294 and 63311303.

It is not an unprimeable number, because it can be changed into a prime (63311327) 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, 13065 + ... + 17242.

It is an arithmetic number, because the mean of its divisors is an integer number (15835930).

Almost surely, 2^63311323 is an apocalyptic number.

63311323 is a deficient number, since it is larger than the sum of its proper divisors (32397).

63311323 is a wasteful number, since it uses less digits than its factorization.

63311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32396.

The product of its digits is 972, while the sum is 22.

The square root of 63311323 is about 7956.8412702529. The cubic root of 63311323 is about 398.5600790388.

Adding to 63311323 its reverse (32311336), we get a palindrome (95622659).

The spelling of 63311323 in words is "sixty-three million, three hundred eleven thousand, three hundred twenty-three".