1311433230444 has 12 divisors (see below), whose sum is σ = 3060010871064. Its totient is φ = 437144410144.

The previous prime is 1311433230397. The next prime is 1311433230469. The reversal of 1311433230444 is 4440323341131.

It is a tau number, because it is divible by the number of its divisors (12).

It is a super-3 number, since 3×1311433230444³ (a number of 37 digits) contains 333 as substring.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54643051257 + ... + 54643051280.

It is an arithmetic number, because the mean of its divisors is an integer number (255000905922).

Almost surely, 2^{1311433230444} is an apocalyptic number.

It is an amenable number.

1311433230444 is an abundant number, since it is smaller than the sum of its proper divisors (1748577640620).

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

1311433230444 is a wasteful number, since it uses less digits than its factorization.

1311433230444 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 109286102544 (or 109286102542 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 33.

Adding to 1311433230444 its reverse (4440323341131), we get a palindrome (5751756571575).

The spelling of 1311433230444 in words is "one trillion, three hundred eleven billion, four hundred thirty-three million, two hundred thirty thousand, four hundred forty-four".