23321311321 has 24 divisors (see below), whose sum is σ = 30615675840. Its totient is φ = 17545802400.

The previous prime is 23321311313. The next prime is 23321311411. The reversal of 23321311321 is 12311312332.

It is not a de Polignac number, because 23321311321 - 2³ = 23321311313 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23321311292 and 23321311301.

It is not an unprimeable number, because it can be changed into a prime (23321311021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 730365 + ... + 761626.

It is an arithmetic number, because the mean of its divisors is an integer number (1275653160).

Almost surely, 2^23321311321 is an apocalyptic number.

It is an amenable number.

23321311321 is a deficient number, since it is larger than the sum of its proper divisors (7294364519).

23321311321 is a wasteful number, since it uses less digits than its factorization.

23321311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1492045 (or 1492038 counting only the distinct ones).

The product of its digits is 648, while the sum is 22.

Adding to 23321311321 its reverse (12311312332), we get a palindrome (35632623653).

The spelling of 23321311321 in words is "twenty-three billion, three hundred twenty-one million, three hundred eleven thousand, three hundred twenty-one".