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212300201231231 = 2081102018357151
BaseRepresentation
bin110000010001010111111110…
…000101001000001101111111
31000211200200221001021210110112
4300101113332011020031333
5210311311303003344411
62031305211021500235
762501116616565521
oct6021277605101577
91024620831253415
10212300201231231
1161711011a38453
121b98924ba1167b
13915ca913a5ba9
143a5d555367a11
15198263716cb8b
hexc115fe14837f

212300201231231 has 4 divisors (see below), whose sum is σ = 212402219590464. Its totient is φ = 212198182872000.

The previous prime is 212300201231219. The next prime is 212300201231273. The reversal of 212300201231231 is 132132102003212.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212300201231231 - 222 = 212300197036927 is a prime.

It is a super-2 number, since 2×2123002012312312 (a number of 29 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 = 212300201231197 and 212300201231206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212300201231291) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 51009176495 + ... + 51009180656.

It is an arithmetic number, because the mean of its divisors is an integer number (53100554897616).

Almost surely, 2212300201231231 is an apocalyptic number.

212300201231231 is a deficient number, since it is larger than the sum of its proper divisors (102018359233).

212300201231231 is a wasteful number, since it uses less digits than its factorization.

212300201231231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 102018359232.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 212300201231231 its reverse (132132102003212), we get a palindrome (344432303234443).

The spelling of 212300201231231 in words is "two hundred twelve trillion, three hundred billion, two hundred one million, two hundred thirty-one thousand, two hundred thirty-one".

Divisors: 1 2081 102018357151 212300201231231