1171321 has 8 divisors (see below), whose sum is σ = 1234944. Its totient is φ = 1108800.

The previous prime is 1171319. The next prime is 1171343. The reversal of 1171321 is 1231711.

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 1171321 - 2¹ = 1171319 is a prime.

It is a Duffinian number.

1171321 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 1171295 and 1171304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1171301) 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, 2721 + ... + 3121.

It is an arithmetic number, because the mean of its divisors is an integer number (154368).

2^1171321 is an apocalyptic number.

It is an amenable number.

1171321 is a deficient number, since it is larger than the sum of its proper divisors (63623).

1171321 is a wasteful number, since it uses less digits than its factorization.

1171321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551.

The product of its digits is 42, while the sum is 16.

The square root of 1171321 is about 1082.2758428423. The cubic root of 1171321 is about 105.4124667948.

The spelling of 1171321 in words is "one million, one hundred seventy-one thousand, three hundred twenty-one".