1321223301271 has 2 divisors, whose sum is σ = 1321223301272. Its totient is φ = 1321223301270.

The previous prime is 1321223301263. The next prime is 1321223301313. The reversal of 1321223301271 is 1721033221231.

It is a weak prime.

It is an emirp because it is prime and its reverse (1721033221231) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1321223301271 - 2³ = 1321223301263 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321223301571) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660611650635 + 660611650636.

It is an arithmetic number, because the mean of its divisors is an integer number (660611650636).

Almost surely, 2^{1321223301271} is an apocalyptic number.

1321223301271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321223301271 is an equidigital number, since it uses as much as digits as its factorization.

1321223301271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3024, while the sum is 28.

The spelling of 1321223301271 in words is "one trillion, three hundred twenty-one billion, two hundred twenty-three million, three hundred one thousand, two hundred seventy-one".