23311402321 has 8 divisors (see below), whose sum is σ = 23421794760. Its totient is φ = 23201098752.

The previous prime is 23311402249. The next prime is 23311402343. The reversal of 23311402321 is 12320411332.

It can be written as a sum of positive squares in 4 ways, for example, as 815902096 + 22495500225 = 28564^2 + 149985^2 .

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 23311402321 - 2⁹ = 23311401809 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 23311402292 and 23311402301.

It is not an unprimeable number, because it can be changed into a prime (23311402421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 536665 + ... + 578473.

It is an arithmetic number, because the mean of its divisors is an integer number (2927724345).

Almost surely, 2^23311402321 is an apocalyptic number.

It is an amenable number.

23311402321 is a deficient number, since it is larger than the sum of its proper divisors (110392439).

23311402321 is a wasteful number, since it uses less digits than its factorization.

23311402321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 44435.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 23311402321 its reverse (12320411332), we get a palindrome (35631813653).

The spelling of 23311402321 in words is "twenty-three billion, three hundred eleven million, four hundred two thousand, three hundred twenty-one".