1311024144421 has 8 divisors (see below), whose sum is σ = 1380039214400. Its totient is φ = 1242010454400.

The previous prime is 1311024144347. The next prime is 1311024144431. The reversal of 1311024144421 is 1244414201131.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1311024144421 - 2⁹ = 1311024143909 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1311024144421.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311024144431) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 2021365 + ... + 2589973.

It is an arithmetic number, because the mean of its divisors is an integer number (172504901800).

Almost surely, 2^{1311024144421} is an apocalyptic number.

It is an amenable number.

1311024144421 is a deficient number, since it is larger than the sum of its proper divisors (69015069979).

1311024144421 is a wasteful number, since it uses less digits than its factorization.

1311024144421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 689979.

The product of its (nonzero) digits is 3072, while the sum is 28.

Adding to 1311024144421 its reverse (1244414201131), we get a palindrome (2555438345552).

The spelling of 1311024144421 in words is "one trillion, three hundred eleven billion, twenty-four million, one hundred forty-four thousand, four hundred twenty-one".