1331060662643 has 2 divisors, whose sum is σ = 1331060662644. Its totient is φ = 1331060662642.

The previous prime is 1331060662597. The next prime is 1331060662691. The reversal of 1331060662643 is 3462660601331.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1331060662643 - 2¹² = 1331060658547 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1331060662643.

It is not a weakly prime, because it can be changed into another prime (1331060664643) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 665530331321 + 665530331322.

It is an arithmetic number, because the mean of its divisors is an integer number (665530331322).

Almost surely, 2^{1331060662643} is an apocalyptic number.

1331060662643 is a deficient number, since it is larger than the sum of its proper divisors (1).

1331060662643 is an equidigital number, since it uses as much as digits as its factorization.

1331060662643 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 279936, while the sum is 41.

The spelling of 1331060662643 in words is "one trillion, three hundred thirty-one billion, sixty million, six hundred sixty-two thousand, six hundred forty-three".