64311323 has 8 divisors (see below), whose sum is σ = 68420880. Its totient is φ = 60238080.

The previous prime is 64311319. The next prime is 64311341. The reversal of 64311323 is 32311346.

64311323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 64311323 - 2² = 64311319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (64311383) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5378 + ... + 12551.

It is an arithmetic number, because the mean of its divisors is an integer number (8552610).

Almost surely, 2^64311323 is an apocalyptic number.

64311323 is a deficient number, since it is larger than the sum of its proper divisors (4109557).

64311323 is a wasteful number, since it uses less digits than its factorization.

64311323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18157.

The product of its digits is 1296, while the sum is 23.

The square root of 64311323 is about 8019.4340822779. The cubic root of 64311323 is about 400.6475407451.

Adding to 64311323 its sum of digits (23), we get a palindrome (64311346).

Adding to 64311323 its reverse (32311346), we get a palindrome (96622669).

The spelling of 64311323 in words is "sixty-four million, three hundred eleven thousand, three hundred twenty-three".