1243464144323 has 4 divisors (see below), whose sum is σ = 1243473560160. Its totient is φ = 1243454728488.

The previous prime is 1243464144319. The next prime is 1243464144341. The reversal of 1243464144323 is 3234414643421.

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 1243464144323 - 2² = 1243464144319 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1243464144313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4506968 + ... + 4774901.

It is an arithmetic number, because the mean of its divisors is an integer number (310868390040).

Almost surely, 2^{1243464144323} is an apocalyptic number.

1243464144323 is a deficient number, since it is larger than the sum of its proper divisors (9415837).

1243464144323 is an equidigital number, since it uses as much as digits as its factorization.

1243464144323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9415836.

The product of its digits is 663552, while the sum is 41.

Adding to 1243464144323 its reverse (3234414643421), we get a palindrome (4477878787744).

The spelling of 1243464144323 in words is "one trillion, two hundred forty-three billion, four hundred sixty-four million, one hundred forty-four thousand, three hundred twenty-three".