23443321442 has 4 divisors (see below), whose sum is σ = 35164982166. Its totient is φ = 11721660720.

The previous prime is 23443321441. The next prime is 23443321469. The reversal of 23443321442 is 24412334432.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 23405634121 + 37687321 = 152989^2 + 6139^2 .

It is a junction number, because it is equal to n+sod(n) for n = 23443321399 and 23443321408.

It is not an unprimeable number, because it can be changed into a prime (23443321441) 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, 5860830359 + ... + 5860830362.

Almost surely, 2^23443321442 is an apocalyptic number.

23443321442 is a deficient number, since it is larger than the sum of its proper divisors (11721660724).

23443321442 is a wasteful number, since it uses less digits than its factorization.

23443321442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11721660723.

The product of its digits is 55296, while the sum is 32.

Adding to 23443321442 its reverse (24412334432), we get a palindrome (47855655874).

The spelling of 23443321442 in words is "twenty-three billion, four hundred forty-three million, three hundred twenty-one thousand, four hundred forty-two".