1313442215444 has 48 divisors (see below), whose sum is σ = 2445799587840. Its totient is φ = 616200989280.

The previous prime is 1313442215419. The next prime is 1313442215461. The reversal of 1313442215444 is 4445122443131.

It is a junction number, because it is equal to n+sod(n) for n = 1313442215398 and 1313442215407.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 429524 + ... + 1676715.

It is an arithmetic number, because the mean of its divisors is an integer number (50954158080).

Almost surely, 2^{1313442215444} is an apocalyptic number.

It is an amenable number.

1313442215444 is a deficient number, since it is larger than the sum of its proper divisors (1132357372396).

1313442215444 is a wasteful number, since it uses less digits than its factorization.

1313442215444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2106428 (or 2106426 counting only the distinct ones).

The product of its digits is 184320, while the sum is 38.

Adding to 1313442215444 its reverse (4445122443131), we get a palindrome (5758564658575).

The spelling of 1313442215444 in words is "one trillion, three hundred thirteen billion, four hundred forty-two million, two hundred fifteen thousand, four hundred forty-four".