23443120331 has 2 divisors, whose sum is σ = 23443120332. Its totient is φ = 23443120330.

The previous prime is 23443120321. The next prime is 23443120423. The reversal of 23443120331 is 13302134432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23443120331 - 2¹⁰ = 23443119307 is a prime.

It is a super-2 number, since 2×23443120331² (a number of 22 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23443120331.

It is not a weakly prime, because it can be changed into another prime (23443120301) 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 as a sum of consecutive naturals, namely, 11721560165 + 11721560166.

It is an arithmetic number, because the mean of its divisors is an integer number (11721560166).

Almost surely, 2^23443120331 is an apocalyptic number.

23443120331 is a deficient number, since it is larger than the sum of its proper divisors (1).

23443120331 is an equidigital number, since it uses as much as digits as its factorization.

23443120331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 23443120331 its reverse (13302134432), we get a palindrome (36745254763).

The spelling of 23443120331 in words is "twenty-three billion, four hundred forty-three million, one hundred twenty thousand, three hundred thirty-one".