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321211312230131 = 2320854816696637
BaseRepresentation
bin100100100001000111101011…
…0001010011100111011110011
31120010022111112122002000221122
41021002033112022130323303
5314100211231412331011
63055054234551212455
7124441515520545551
oct11102172612347363
91503274478060848
10321211312230131
1193390a52879574
1230038aa267712b
1310a301347bb63b
1459469d3726bd1
15272069b5973db
hex12423d629cef3

321211312230131 has 8 divisors (see below), whose sum is σ = 335177232228384. Its totient is φ = 307245409796160.

The previous prime is 321211312230121. The next prime is 321211312230187. The reversal of 321211312230131 is 131032213112123.

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 321211312230131 - 226 = 321211245121267 is a prime.

It is a super-2 number, since 2×3212113122301312 (a number of 30 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321211312230131.

It is not an unprimeable number, because it can be changed into a prime (321211312230121) 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, 44617745 + ... + 51314381.

It is an arithmetic number, because the mean of its divisors is an integer number (41897154028548).

Almost surely, 2321211312230131 is an apocalyptic number.

321211312230131 is a deficient number, since it is larger than the sum of its proper divisors (13965919998253).

321211312230131 is a wasteful number, since it uses less digits than its factorization.

321211312230131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8782141.

The product of its (nonzero) digits is 1296, while the sum is 26.

Adding to 321211312230131 its reverse (131032213112123), we get a palindrome (452243525342254).

The spelling of 321211312230131 in words is "three hundred twenty-one trillion, two hundred eleven billion, three hundred twelve million, two hundred thirty thousand, one hundred thirty-one".

Divisors: 1 23 2085481 6696637 47966063 154022651 13965709227397 321211312230131