1311441143021 has 8 divisors (see below), whose sum is σ = 1339668405504. Its totient is φ = 1283227391440.

The previous prime is 1311441142873. The next prime is 1311441143027. The reversal of 1311441143021 is 1203411441131.

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 1311441143021 - 2³⁸ = 1036563236077 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311441143027) 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, 3181385 + ... + 3569886.

It is an arithmetic number, because the mean of its divisors is an integer number (167458550688).

Almost surely, 2^{1311441143021} is an apocalyptic number.

It is an amenable number.

1311441143021 is a deficient number, since it is larger than the sum of its proper divisors (28227262483).

1311441143021 is an equidigital number, since it uses as much as digits as its factorization.

1311441143021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6755451.

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 1311441143021 its reverse (1203411441131), we get a palindrome (2514852584152).

The spelling of 1311441143021 in words is "one trillion, three hundred eleven billion, four hundred forty-one million, one hundred forty-three thousand, twenty-one".