12443363453 has 4 divisors (see below), whose sum is σ = 12443598048. Its totient is φ = 12443128860.

The previous prime is 12443363437. The next prime is 12443363459. The reversal of 12443363453 is 35436334421.

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, and also an emirpimes, since its reverse is a distinct semiprime: 35436334421 = 6311 ⋅5615011.

It is a cyclic number.

It is not a de Polignac number, because 12443363453 - 2⁴ = 12443363437 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 (12443363459) 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, 4250 + ... + 157812.

It is an arithmetic number, because the mean of its divisors is an integer number (3110899512).

Almost surely, 2^12443363453 is an apocalyptic number.

It is an amenable number.

12443363453 is a deficient number, since it is larger than the sum of its proper divisors (234595).

12443363453 is an equidigital number, since it uses as much as digits as its factorization.

12443363453 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234594.

The product of its digits is 311040, while the sum is 38.

Adding to 12443363453 its reverse (35436334421), we get a palindrome (47879697874).

The spelling of 12443363453 in words is "twelve billion, four hundred forty-three million, three hundred sixty-three thousand, four hundred fifty-three".