1071332271 has 16 divisors (see below), whose sum is σ = 1670694400. Its totient is φ = 676630584.

The previous prime is 1071332267. The next prime is 1071332287. The reversal of 1071332271 is 1722331701.

It is not a de Polignac number, because 1071332271 - 2² = 1071332267 is a prime.

It is a super-2 number, since 2×1071332271² = 2295505669772034882, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1071332261) 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 in 15 ways as a sum of consecutive naturals, for example, 1043671 + ... + 1044696.

It is an arithmetic number, because the mean of its divisors is an integer number (104418400).

Almost surely, 2^1071332271 is an apocalyptic number.

1071332271 is a deficient number, since it is larger than the sum of its proper divisors (599362129).

1071332271 is a wasteful number, since it uses less digits than its factorization.

1071332271 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2088395 (or 2088389 counting only the distinct ones).

The product of its (nonzero) digits is 1764, while the sum is 27.

The square root of 1071332271 is about 32731.2124889989. The cubic root of 1071332271 is about 1023.2334500462.

Adding to 1071332271 its reverse (1722331701), we get a palindrome (2793663972).

The spelling of 1071332271 in words is "one billion, seventy-one million, three hundred thirty-two thousand, two hundred seventy-one".