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321143014231 = 13171453135811
BaseRepresentation
bin1001010110001011001…
…11011000001101010111
31010200221000020102202021
410223011213120031113
520230200102423411
6403310413154011
732126136403264
oct4530547301527
91120830212667
10321143014231
1111421794a886
12522a618b907
132438c267a10
141178716226b
15854895aa71
hex4ac59d8357

321143014231 has 8 divisors (see below), whose sum is σ = 366190224624. Its totient is φ = 279002075520.

The previous prime is 321143014223. The next prime is 321143014237. The reversal of 321143014231 is 132410341123.

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 321143014231 - 23 = 321143014223 is a prime.

It is a super-2 number, since 2×3211430142312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321143014196 and 321143014205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (321143014237) 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, 726567685 + ... + 726568126.

It is an arithmetic number, because the mean of its divisors is an integer number (45773778078).

Almost surely, 2321143014231 is an apocalyptic number.

321143014231 is a deficient number, since it is larger than the sum of its proper divisors (45047210393).

321143014231 is a wasteful number, since it uses less digits than its factorization.

321143014231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1453135841.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 321143014231 its reverse (132410341123), we get a palindrome (453553355354).

The spelling of 321143014231 in words is "three hundred twenty-one billion, one hundred forty-three million, fourteen thousand, two hundred thirty-one".

Divisors: 1 13 17 221 1453135811 18890765543 24703308787 321143014231