1321472317 has 8 divisors (see below), whose sum is σ = 1442977632. Its totient is φ = 1200195600.

The previous prime is 1321472311. The next prime is 1321472323. The reversal of 1321472317 is 7132741231.

It is an interprime number because it is at equal distance from previous prime (1321472311) and next prime (1321472323).

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321472317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1321472311) 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, 44943 + ... + 68284.

It is an arithmetic number, because the mean of its divisors is an integer number (180372204).

Almost surely, 2^1321472317 is an apocalyptic number.

It is an amenable number.

1321472317 is a deficient number, since it is larger than the sum of its proper divisors (121505315).

1321472317 is a wasteful number, since it uses less digits than its factorization.

1321472317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 114299.

The product of its digits is 7056, while the sum is 31.

The square root of 1321472317 is about 36352.0606981227. The cubic root of 1321472317 is about 1097.3690061121.

The spelling of 1321472317 in words is "one billion, three hundred twenty-one million, four hundred seventy-two thousand, three hundred seventeen".