1243212241244 has 12 divisors (see below), whose sum is σ = 2177862027768. Its totient is φ = 620965947600.

The previous prime is 1243212241231. The next prime is 1243212241309. The reversal of 1243212241244 is 4421422123421.

It is a self number, because there is not a number n which added to its sum of digits gives 1243212241244.

It is a congruent 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, 160038887 + ... + 160046654.

It is an arithmetic number, because the mean of its divisors is an integer number (181488502314).

Almost surely, 2^{1243212241244} is an apocalyptic number.

It is an amenable number.

1243212241244 is a deficient number, since it is larger than the sum of its proper divisors (934649786524).

1243212241244 is a wasteful number, since it uses less digits than its factorization.

1243212241244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320086516 (or 320086514 counting only the distinct ones).

The product of its digits is 24576, while the sum is 32.

Adding to 1243212241244 its reverse (4421422123421), we get a palindrome (5664634364665).

The spelling of 1243212241244 in words is "one trillion, two hundred forty-three billion, two hundred twelve million, two hundred forty-one thousand, two hundred forty-four".