1231422504443 has 4 divisors (see below), whose sum is σ = 1231484739288. Its totient is φ = 1231360269600.

The previous prime is 1231422504409. The next prime is 1231422504451. The reversal of 1231422504443 is 3444052241321.

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 1231422504443 - 2¹⁸ = 1231422242299 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1231422501443) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 31087733 + ... + 31127318.

It is an arithmetic number, because the mean of its divisors is an integer number (307871184822).

Almost surely, 2^{1231422504443} is an apocalyptic number.

1231422504443 is a deficient number, since it is larger than the sum of its proper divisors (62234845).

1231422504443 is an equidigital number, since it uses as much as digits as its factorization.

1231422504443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62234844.

The product of its (nonzero) digits is 92160, while the sum is 35.

Adding to 1231422504443 its reverse (3444052241321), we get a palindrome (4675474745764).

The spelling of 1231422504443 in words is "one trillion, two hundred thirty-one billion, four hundred twenty-two million, five hundred four thousand, four hundred forty-three".