2271297331 has 2 divisors, whose sum is σ = 2271297332. Its totient is φ = 2271297330.

The previous prime is 2271297317. The next prime is 2271297349. The reversal of 2271297331 is 1337921722.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-2271297331 is a prime.

It is a super-2 number, since 2×2271297331² = 10317583131615447122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (2271297731) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1135648665 + 1135648666.

It is an arithmetic number, because the mean of its divisors is an integer number (1135648666).

Almost surely, 2^2271297331 is an apocalyptic number.

2271297331 is a deficient number, since it is larger than the sum of its proper divisors (1).

2271297331 is an equidigital number, since it uses as much as digits as its factorization.

2271297331 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 31752, while the sum is 37.

The square root of 2271297331 is about 47658.1297471900. The cubic root of 2271297331 is about 1314.4921498878.

The spelling of 2271297331 in words is "two billion, two hundred seventy-one million, two hundred ninety-seven thousand, three hundred thirty-one".