1244513321112 has 32 divisors (see below), whose sum is σ = 3112440505200. Its totient is φ = 414683480064.

The previous prime is 1244513321089. The next prime is 1244513321119. The reversal of 1244513321112 is 2111233154421.

It is a self number, because there is not a number n which added to its sum of digits gives 1244513321112.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1244513321119) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9577473 + ... + 9706544.

Almost surely, 2^{1244513321112} is an apocalyptic number.

1244513321112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1244513321112 is an abundant number, since it is smaller than the sum of its proper divisors (1867927184088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1244513321112 is a wasteful number, since it uses less digits than its factorization.

1244513321112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19286715 (or 19286711 counting only the distinct ones).

The product of its digits is 5760, while the sum is 30.

Adding to 1244513321112 its reverse (2111233154421), we get a palindrome (3355746475533).

The spelling of 1244513321112 in words is "one trillion, two hundred forty-four billion, five hundred thirteen million, three hundred twenty-one thousand, one hundred twelve".