1041243444421 has 4 divisors (see below), whose sum is σ = 1041635039200. Its totient is φ = 1040851849644.

The previous prime is 1041243444413. The next prime is 1041243444463. The reversal of 1041243444421 is 1244443421401.

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 1041243444421 - 2³ = 1041243444413 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 (1041243444401) 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, 195793401 + ... + 195798718.

It is an arithmetic number, because the mean of its divisors is an integer number (260408759800).

Almost surely, 2^{1041243444421} is an apocalyptic number.

It is an amenable number.

1041243444421 is a deficient number, since it is larger than the sum of its proper divisors (391594779).

1041243444421 is an equidigital number, since it uses as much as digits as its factorization.

1041243444421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391594778.

The product of its (nonzero) digits is 49152, while the sum is 34.

Adding to 1041243444421 its reverse (1244443421401), we get a palindrome (2285686865822).

The spelling of 1041243444421 in words is "one trillion, forty-one billion, two hundred forty-three million, four hundred forty-four thousand, four hundred twenty-one".