1244500404401 has 4 divisors (see below), whose sum is σ = 1244682702192. Its totient is φ = 1244318106612.

The previous prime is 1244500404373. The next prime is 1244500404403. The reversal of 1244500404401 is 1044040054421.

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 a de Polignac number, because none of the positive numbers 2^k-1244500404401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244500404403) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 91138655 + ... + 91152308.

It is an arithmetic number, because the mean of its divisors is an integer number (311170675548).

Almost surely, 2^{1244500404401} is an apocalyptic number.

It is an amenable number.

1244500404401 is a deficient number, since it is larger than the sum of its proper divisors (182297791).

1244500404401 is an equidigital number, since it uses as much as digits as its factorization.

1244500404401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 182297790.

The product of its (nonzero) digits is 10240, while the sum is 29.

Adding to 1244500404401 its reverse (1044040054421), we get a palindrome (2288540458822).

The spelling of 1244500404401 in words is "one trillion, two hundred forty-four billion, five hundred million, four hundred four thousand, four hundred one".