1244421413401 has 4 divisors (see below), whose sum is σ = 1278054424612. Its totient is φ = 1210788402192.

The previous prime is 1244421413371. The next prime is 1244421413413. The reversal of 1244421413401 is 1043141244421.

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

It can be written as a sum of positive squares in 2 ways, for example, as 520960594176 + 723460819225 = 721776^2 + 850565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1244421413401 - 2⁷ = 1244421413273 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1244421413461) 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, 16816505550 + ... + 16816505623.

It is an arithmetic number, because the mean of its divisors is an integer number (319513606153).

Almost surely, 2^{1244421413401} is an apocalyptic number.

It is an amenable number.

1244421413401 is a deficient number, since it is larger than the sum of its proper divisors (33633011211).

1244421413401 is an equidigital number, since it uses as much as digits as its factorization.

1244421413401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 33633011210.

The product of its (nonzero) digits is 12288, while the sum is 31.

Adding to 1244421413401 its reverse (1043141244421), we get a palindrome (2287562657822).

The spelling of 1244421413401 in words is "one trillion, two hundred forty-four billion, four hundred twenty-one million, four hundred thirteen thousand, four hundred one".