1171023971 has 8 divisors (see below), whose sum is σ = 1335285504. Its totient is φ = 1017360000.

The previous prime is 1171023961. The next prime is 1171023991. The reversal of 1171023971 is 1793201711.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1171023971 - 2¹⁸ = 1170761827 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1171023901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2649155 + ... + 2649596.

It is an arithmetic number, because the mean of its divisors is an integer number (166910688).

Almost surely, 2^1171023971 is an apocalyptic number.

1171023971 is a deficient number, since it is larger than the sum of its proper divisors (164261533).

1171023971 is a wasteful number, since it uses less digits than its factorization.

1171023971 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5298781.

The product of its (nonzero) digits is 2646, while the sum is 32.

The square root of 1171023971 is about 34220.2275123939. The cubic root of 1171023971 is about 1054.0355571445.

The spelling of 1171023971 in words is "one billion, one hundred seventy-one million, twenty-three thousand, nine hundred seventy-one".