1321848213479 has 2 divisors, whose sum is σ = 1321848213480. Its totient is φ = 1321848213478.

The previous prime is 1321848213391. The next prime is 1321848213527. The reversal of 1321848213479 is 9743128481231.

It is a happy number.

It is a strong prime.

It is an emirp because it is prime and its reverse (9743128481231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321848213479 - 2¹⁶ = 1321848147943 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1321848213479.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321848213379) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660924106739 + 660924106740.

It is an arithmetic number, because the mean of its divisors is an integer number (660924106740).

Almost surely, 2^{1321848213479} is an apocalyptic number.

1321848213479 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321848213479 is an equidigital number, since it uses as much as digits as its factorization.

1321848213479 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2322432, while the sum is 53.

The spelling of 1321848213479 in words is "one trillion, three hundred twenty-one billion, eight hundred forty-eight million, two hundred thirteen thousand, four hundred seventy-nine".