1113221323271 has 2 divisors, whose sum is σ = 1113221323272. Its totient is φ = 1113221323270.

The previous prime is 1113221323261. The next prime is 1113221323273. The reversal of 1113221323271 is 1723231223111.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1113221323271 is a prime.

It is a super-2 number, since 2×1113221323271² (a number of 25 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 1113221323273, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113221323273) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556610661635 + 556610661636.

It is an arithmetic number, because the mean of its divisors is an integer number (556610661636).

Almost surely, 2^{1113221323271} is an apocalyptic number.

1113221323271 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113221323271 is an equidigital number, since it uses as much as digits as its factorization.

1113221323271 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3024, while the sum is 29.

Adding to 1113221323271 its reverse (1723231223111), we get a palindrome (2836452546382).

The spelling of 1113221323271 in words is "one trillion, one hundred thirteen billion, two hundred twenty-one million, three hundred twenty-three thousand, two hundred seventy-one".