23423344332433 has 4 divisors (see below), whose sum is σ = 23423986579428. Its totient is φ = 23422702085440.

The previous prime is 23423344332419. The next prime is 23423344332449. The reversal of 23423344332433 is 33423344332432.

It is a happy number.

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

It can be written as a sum of positive squares in 2 ways, for example, as 7570460593809 + 15852883738624 = 2751447^2 + 3981568^2 .

It is a cyclic number.

It is not a de Polignac number, because 23423344332433 - 2⁹ = 23423344331921 is a prime.

It is a super-4 number, since 4×23423344332433⁴ (a number of 55 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 23423344332433.

It is not an unprimeable number, because it can be changed into a prime (23423344336433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 321068788 + ... + 321141733.

It is an arithmetic number, because the mean of its divisors is an integer number (5855996644857).

Almost surely, 2^{23423344332433} is an apocalyptic number.

It is an amenable number.

23423344332433 is a deficient number, since it is larger than the sum of its proper divisors (642246995).

23423344332433 is an equidigital number, since it uses as much as digits as its factorization.

23423344332433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 642246994.

The product of its digits is 4478976, while the sum is 43.

Adding to 23423344332433 its reverse (33423344332432), we get a palindrome (56846688664865).

Subtracting 23423344332433 from its reverse (33423344332432), we obtain a palindrome (9999999999999).

The spelling of 23423344332433 in words is "twenty-three trillion, four hundred twenty-three billion, three hundred forty-four million, three hundred thirty-two thousand, four hundred thirty-three".