23321001313 has 4 divisors (see below), whose sum is σ = 23321318548. Its totient is φ = 23320684080.

The previous prime is 23321001287. The next prime is 23321001323. The reversal of 23321001313 is 31310012332.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 4604572449 + 18716428864 = 67857^2 + 136808^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-23321001313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23321001323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14995 + ... + 216487.

It is an arithmetic number, because the mean of its divisors is an integer number (5830329637).

Almost surely, 2^23321001313 is an apocalyptic number.

It is an amenable number.

23321001313 is a deficient number, since it is larger than the sum of its proper divisors (317235).

23321001313 is a wasteful number, since it uses less digits than its factorization.

23321001313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 317234.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 23321001313 its reverse (31310012332), we get a palindrome (54631013645).

The spelling of 23321001313 in words is "twenty-three billion, three hundred twenty-one million, one thousand, three hundred thirteen".