11331131022271 has 2 divisors, whose sum is σ = 11331131022272. Its totient is φ = 11331131022270.

The previous prime is 11331131022241. The next prime is 11331131022307. The reversal of 11331131022271 is 17222013113311.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11331131022271 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11331131022241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5665565511135 + 5665565511136.

It is an arithmetic number, because the mean of its divisors is an integer number (5665565511136).

Almost surely, 2^{11331131022271} is an apocalyptic number.

11331131022271 is a deficient number, since it is larger than the sum of its proper divisors (1).

11331131022271 is an equidigital number, since it uses as much as digits as its factorization.

11331131022271 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1512, while the sum is 28.

Adding to 11331131022271 its reverse (17222013113311), we get a palindrome (28553144135582).

The spelling of 11331131022271 in words is "eleven trillion, three hundred thirty-one billion, one hundred thirty-one million, twenty-two thousand, two hundred seventy-one".