1321052171 has 8 divisors (see below), whose sum is σ = 1350202944. Its totient is φ = 1291944960.

The previous prime is 1321052143. The next prime is 1321052177. The reversal of 1321052171 is 1712501231.

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 1321052171 - 2¹⁴ = 1321035787 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1321052177) 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, 54731 + ... + 75083.

It is an arithmetic number, because the mean of its divisors is an integer number (168775368).

Almost surely, 2^1321052171 is an apocalyptic number.

1321052171 is a deficient number, since it is larger than the sum of its proper divisors (29150773).

1321052171 is a wasteful number, since it uses less digits than its factorization.

1321052171 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21781.

The product of its (nonzero) digits is 420, while the sum is 23.

The square root of 1321052171 is about 36346.2813916362. The cubic root of 1321052171 is about 1097.2526954225.

The spelling of 1321052171 in words is "one billion, three hundred twenty-one million, fifty-two thousand, one hundred seventy-one".