451243113443 has 4 divisors (see below), whose sum is σ = 451251421608. Its totient is φ = 451234805280.

The previous prime is 451243113437. The next prime is 451243113479. The reversal of 451243113443 is 344311342154.

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

It is a cyclic number.

It is not a de Polignac number, because 451243113443 - 2¹⁸ = 451242851299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (451243013443) 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, 4072073 + ... + 4181418.

It is an arithmetic number, because the mean of its divisors is an integer number (112812855402).

Almost surely, 2^451243113443 is an apocalyptic number.

451243113443 is a deficient number, since it is larger than the sum of its proper divisors (8308165).

451243113443 is an equidigital number, since it uses as much as digits as its factorization.

451243113443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8308164.

The product of its digits is 69120, while the sum is 35.

Adding to 451243113443 its reverse (344311342154), we get a palindrome (795554455597).

The spelling of 451243113443 in words is "four hundred fifty-one billion, two hundred forty-three million, one hundred thirteen thousand, four hundred forty-three".