1383921665611 has 2 divisors, whose sum is σ = 1383921665612. Its totient is φ = 1383921665610.

The previous prime is 1383921665597. The next prime is 1383921665627. The reversal of 1383921665611 is 1165661293831.

It is a weak prime.

It is an emirp because it is prime and its reverse (1165661293831) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1383921665611 - 2³³ = 1375331731019 is a prime.

It is not a weakly prime, because it can be changed into another prime (1383921665111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 691960832805 + 691960832806.

It is an arithmetic number, because the mean of its divisors is an integer number (691960832806).

Almost surely, 2^{1383921665611} is an apocalyptic number.

1383921665611 is a deficient number, since it is larger than the sum of its proper divisors (1).

1383921665611 is an equidigital number, since it uses as much as digits as its factorization.

1383921665611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 1399680, while the sum is 52.

The spelling of 1383921665611 in words is "one trillion, three hundred eighty-three billion, nine hundred twenty-one million, six hundred sixty-five thousand, six hundred eleven".