1331355134443 has 2 divisors, whose sum is σ = 1331355134444. Its totient is φ = 1331355134442.

The previous prime is 1331355134411. The next prime is 1331355134467. The reversal of 1331355134443 is 3444315531331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1331355134443 - 2⁵ = 1331355134411 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1331355134396 and 1331355134405.

It is not a weakly prime, because it can be changed into another prime (1331355134143) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665677567221 + 665677567222.

It is an arithmetic number, because the mean of its divisors is an integer number (665677567222).

Almost surely, 2^{1331355134443} is an apocalyptic number.

1331355134443 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331355134443 is an equidigital number, since it uses as much as digits as its factorization.

1331355134443 is an evil number, because the sum of its binary digits is even.

The product of its digits is 388800, while the sum is 40.

The spelling of 1331355134443 in words is "one trillion, three hundred thirty-one billion, three hundred fifty-five million, one hundred thirty-four thousand, four hundred forty-three".