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321201317 is a prime number
BaseRepresentation
bin10011001001010…
…010010010100101
3211101101201101002
4103021102102211
51124211420232
651512243045
710650110663
oct2311222245
9741351332
10321201317
11155345338
128b6a0485
1351711c68
1430931c33
151d2eab62
hex132524a5

321201317 has 2 divisors, whose sum is σ = 321201318. Its totient is φ = 321201316.

The previous prime is 321201301. The next prime is 321201343. The reversal of 321201317 is 713102123.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 199628641 + 121572676 = 14129^2 + 11026^2 .

It is an emirp because it is prime and its reverse (713102123) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 321201317 - 24 = 321201301 is a prime.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (321201347) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 160600658 + 160600659.

It is an arithmetic number, because the mean of its divisors is an integer number (160600659).

Almost surely, 2321201317 is an apocalyptic number.

It is an amenable number.

321201317 is a deficient number, since it is larger than the sum of its proper divisors (1).

321201317 is an equidigital number, since it uses as much as digits as its factorization.

321201317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 252, while the sum is 20.

The square root of 321201317 is about 17922.0901961797. The cubic root of 321201317 is about 684.8452361395.

The spelling of 321201317 in words is "three hundred twenty-one million, two hundred one thousand, three hundred seventeen".