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20321212312201 = 211152363236417
BaseRepresentation
bin1001001111011011001101…
…01001000010101010001001
32122221200121020002122100111
410213231212221002222021
510130420320322442301
6111115234104434321
74165105404436123
oct447554651025211
978850536078314
1020321212312201
1165251a5639469
122342478a789a1
13b45388a02868
145037a269c213
1525390492e551
hex127b66a42a89

20321212312201 has 8 divisors (see below), whose sum is σ = 20430927818784. Its totient is φ = 20211623281920.

The previous prime is 20321212312183. The next prime is 20321212312213. The reversal of 20321212312201 is 10221321212302.

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 20321212312201 - 225 = 20321178757769 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20321212312241) 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, 31296856 + ... + 31939561.

It is an arithmetic number, because the mean of its divisors is an integer number (2553865977348).

Almost surely, 220321212312201 is an apocalyptic number.

It is an amenable number.

20321212312201 is a deficient number, since it is larger than the sum of its proper divisors (109715506583).

20321212312201 is a wasteful number, since it uses less digits than its factorization.

20321212312201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63238151.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20321212312201 its reverse (10221321212302), we get a palindrome (30542533524503).

The spelling of 20321212312201 in words is "twenty trillion, three hundred twenty-one billion, two hundred twelve million, three hundred twelve thousand, two hundred one".

Divisors: 1 211 1523 321353 63236417 13342883987 96309063091 20321212312201