243322241453 has 4 divisors (see below), whose sum is σ = 251171346048. Its totient is φ = 235473136860.

The previous prime is 243322241443. The next prime is 243322241483. The reversal of 243322241453 is 354142223342.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 243322241453 - 2¹⁶ = 243322175917 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (243322241413) 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, 3924552251 + ... + 3924552312.

It is an arithmetic number, because the mean of its divisors is an integer number (62792836512).

Almost surely, 2^243322241453 is an apocalyptic number.

It is an amenable number.

243322241453 is a deficient number, since it is larger than the sum of its proper divisors (7849104595).

243322241453 is an equidigital number, since it uses as much as digits as its factorization.

243322241453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7849104594.

The product of its digits is 138240, while the sum is 35.

Adding to 243322241453 its reverse (354142223342), we get a palindrome (597464464795).

The spelling of 243322241453 in words is "two hundred forty-three billion, three hundred twenty-two million, two hundred forty-one thousand, four hundred fifty-three".