1244213143401 has 4 divisors (see below), whose sum is σ = 1658950857872. Its totient is φ = 829475428932.

The previous prime is 1244213143373. The next prime is 1244213143403. The reversal of 1244213143401 is 1043413124421.

It is a happy number.

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 not a de Polignac number, because 1244213143401 - 2⁷ = 1244213143273 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1244213143403) 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, 207368857231 + ... + 207368857236.

It is an arithmetic number, because the mean of its divisors is an integer number (414737714468).

Almost surely, 2^{1244213143401} is an apocalyptic number.

It is an amenable number.

1244213143401 is a deficient number, since it is larger than the sum of its proper divisors (414737714471).

1244213143401 is an equidigital number, since it uses as much as digits as its factorization.

1244213143401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 414737714470.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 1244213143401 its reverse (1043413124421), we get a palindrome (2287626267822).

The spelling of 1244213143401 in words is "one trillion, two hundred forty-four billion, two hundred thirteen million, one hundred forty-three thousand, four hundred one".