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12122012203311 = 34499718979847
BaseRepresentation
bin1011000001100110000000…
…1110110011100100101111
31120220212000212120020022110
42300121200032303210233
53042101340111001221
641440435303015103
72360533522433613
oct260314016634457
946825025506273
1012122012203311
113953a0996106a
1214393b143a493
1369c1407349aa
142dc9cc279343
151604c4899776
hexb06603b392f

12122012203311 has 8 divisors (see below), whose sum is σ = 16162720657024. Its totient is φ = 8081322609240.

The previous prime is 12122012203241. The next prime is 12122012203337. The reversal of 12122012203311 is 11330221022121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12122012203311 - 27 = 12122012203183 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12122012203811) 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, 3140011 + ... + 5839836.

It is an arithmetic number, because the mean of its divisors is an integer number (2020340082128).

Almost surely, 212122012203311 is an apocalyptic number.

12122012203311 is a deficient number, since it is larger than the sum of its proper divisors (4040708453713).

12122012203311 is an equidigital number, since it uses as much as digits as its factorization.

12122012203311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9429821.

The product of its (nonzero) digits is 288, while the sum is 21.

Adding to 12122012203311 its reverse (11330221022121), we get a palindrome (23452233225432).

The spelling of 12122012203311 in words is "twelve trillion, one hundred twenty-two billion, twelve million, two hundred three thousand, three hundred eleven".

Divisors: 1 3 449971 1349913 8979847 26939541 4040670734437 12122012203311