22431352441 has 3 divisors (see below), whose sum is σ = 22431502213. Its totient is φ = 22431202670.

The previous prime is 22431352387. The next prime is 22431352451. The reversal of 22431352441 is 14425313422.

The square root of 22431352441 is 149771.

It is a perfect power (a square), and thus also a powerful number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is not a de Polignac number, because 22431352441 - 2¹¹ = 22431350393 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22431352451) by changing a digit.

It is a polite number, since it can be written in 2 ways as a sum of consecutive naturals, for example, 74886 + ... + 224656.

Almost surely, 2^22431352441 is an apocalyptic number.

22431352441 is the 149771-st square number.

22431352441 is the 74886-th centered octagonal number.

It is an amenable number.

22431352441 is a deficient number, since it is larger than the sum of its proper divisors (149772).

22431352441 is an frugal number, since it uses more digits than its factorization.

22431352441 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 299542 (or 149771 counting only the distinct ones).

The product of its digits is 23040, while the sum is 31.

Adding to 22431352441 its reverse (14425313422), we get a palindrome (36856665863).

The spelling of 22431352441 in words is "twenty-two billion, four hundred thirty-one million, three hundred fifty-two thousand, four hundred forty-one".