1244120403244 has 12 divisors (see below), whose sum is σ = 2305281923784. Its totient is φ = 585468425024.

The previous prime is 1244120403233. The next prime is 1244120403257. The reversal of 1244120403244 is 4423040214421.

It is a happy number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9147944074 + ... + 9147944209.

It is an arithmetic number, because the mean of its divisors is an integer number (192106826982).

Almost surely, 2^{1244120403244} is an apocalyptic number.

It is an amenable number.

1244120403244 is a deficient number, since it is larger than the sum of its proper divisors (1061161520540).

1244120403244 is a wasteful number, since it uses less digits than its factorization.

1244120403244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18295888304 (or 18295888302 counting only the distinct ones).

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 1244120403244 its reverse (4423040214421), we get a palindrome (5667160617665).

The spelling of 1244120403244 in words is "one trillion, two hundred forty-four billion, one hundred twenty million, four hundred three thousand, two hundred forty-four".