1313444243424 has 48 divisors (see below), whose sum is σ = 3449245887360. Its totient is φ = 437630017920.

The previous prime is 1313444243417. The next prime is 1313444243443. The reversal of 1313444243424 is 4243424443131.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2657604 + ... + 3112835.

It is an arithmetic number, because the mean of its divisors is an integer number (71859289320).

Almost surely, 2^{1313444243424} is an apocalyptic number.

It is an amenable number.

1313444243424 is an abundant number, since it is smaller than the sum of its proper divisors (2135801643936).

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

1313444243424 is a wasteful number, since it uses less digits than its factorization.

1313444243424 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5772823 (or 5772815 counting only the distinct ones).

The product of its digits is 442368, while the sum is 39.

Adding to 1313444243424 its reverse (4243424443131), we get a palindrome (5556868686555).

The spelling of 1313444243424 in words is "one trillion, three hundred thirteen billion, four hundred forty-four million, two hundred forty-three thousand, four hundred twenty-four".