1311562133443 has 2 divisors, whose sum is σ = 1311562133444. Its totient is φ = 1311562133442.

The previous prime is 1311562133417. The next prime is 1311562133459. The reversal of 1311562133443 is 3443312651131.

It is a strong prime.

It is an emirp because it is prime and its reverse (3443312651131) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1311562133443 - 2²¹ = 1311560036291 is a prime.

It is not a weakly prime, because it can be changed into another prime (1311562133143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 655781066721 + 655781066722.

It is an arithmetic number, because the mean of its divisors is an integer number (655781066722).

Almost surely, 2^{1311562133443} is an apocalyptic number.

1311562133443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1311562133443 is an equidigital number, since it uses as much as digits as its factorization.

1311562133443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 77760, while the sum is 37.

Adding to 1311562133443 its reverse (3443312651131), we get a palindrome (4754874784574).

The spelling of 1311562133443 in words is "one trillion, three hundred eleven billion, five hundred sixty-two million, one hundred thirty-three thousand, four hundred forty-three".