1321104271 has 2 divisors, whose sum is σ = 1321104272. Its totient is φ = 1321104270.

The previous prime is 1321104269. The next prime is 1321104311. The reversal of 1321104271 is 1724011231.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1321104271 - 2¹ = 1321104269 is a prime.

It is a super-3 number, since 3×1321104271³ (a number of 28 digits) contains 333 as substring.

Together with 1321104269, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1321104241) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 660552135 + 660552136.

It is an arithmetic number, because the mean of its divisors is an integer number (660552136).

Almost surely, 2^1321104271 is an apocalyptic number.

1321104271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1321104271 is an equidigital number, since it uses as much as digits as its factorization.

1321104271 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 336, while the sum is 22.

The square root of 1321104271 is about 36346.9981016314. The cubic root of 1321104271 is about 1097.2671198122.

The spelling of 1321104271 in words is "one billion, three hundred twenty-one million, one hundred four thousand, two hundred seventy-one".