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120312211301 = 4716727755337
BaseRepresentation
bin111000000001100101…
…0101010011101100101
3102111112202122120212222
41300003022222131211
53432344411230201
6131134244122125
711456306631302
oct1600312523545
9374482576788
10120312211301
114702a11a097
121b398396345
13b464a9c399
145b749b80a9
1531e25c791b
hex1c032aa765

120312211301 has 16 divisors (see below), whose sum is σ = 124056285696. Its totient is φ = 116622612096.

The previous prime is 120312211291. The next prime is 120312211321. The reversal of 120312211301 is 103112213021.

It is a cyclic number.

It is not a de Polignac number, because 120312211301 - 218 = 120311949157 is a prime.

It is a super-2 number, since 2×1203122113012 (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 120312211301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120312211321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2146505 + ... + 2201841.

It is an arithmetic number, because the mean of its divisors is an integer number (7753517856).

Almost surely, 2120312211301 is an apocalyptic number.

It is an amenable number.

120312211301 is a deficient number, since it is larger than the sum of its proper divisors (3744074395).

120312211301 is a wasteful number, since it uses less digits than its factorization.

120312211301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55828.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 120312211301 its reverse (103112213021), we get a palindrome (223424424322).

The spelling of 120312211301 in words is "one hundred twenty billion, three hundred twelve million, two hundred eleven thousand, three hundred one".

Divisors: 1 47 167 277 7849 13019 46259 55337 2174173 2600839 9241279 15328349 434340113 720432403 2559834283 120312211301