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120231320013 = 32717112260803
BaseRepresentation
bin110111111111001011…
…0000101100111001101
3102111100010102212220100
41233332112011213031
53432213204220023
6131122234241313
711454305233530
oct1577626054715
9374303385810
10120231320013
1146a9849a292
121b375286239
13b4510b940c
145b67d5ca17
1531da449c43
hex1bfe5859cd

120231320013 has 24 divisors (see below), whose sum is σ = 210152225088. Its totient is φ = 64662221952.

The previous prime is 120231319991. The next prime is 120231320059. The reversal of 120231320013 is 310023132021.

It is not a de Polignac number, because 120231320013 - 213 = 120231311821 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120231321013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56129331 + ... + 56131472.

It is an arithmetic number, because the mean of its divisors is an integer number (8756342712).

Almost surely, 2120231320013 is an apocalyptic number.

It is an amenable number.

120231320013 is a deficient number, since it is larger than the sum of its proper divisors (89920905075).

120231320013 is a wasteful number, since it uses less digits than its factorization.

120231320013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112260833 (or 112260830 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 120231320013 its reverse (310023132021), we get a palindrome (430254452034).

The spelling of 120231320013 in words is "one hundred twenty billion, two hundred thirty-one million, three hundred twenty thousand, thirteen".

Divisors: 1 3 7 9 17 21 51 63 119 153 357 1071 112260803 336782409 785825621 1010347227 1908433651 2357476863 5725300953 7072430589 13359035557 17175902859 40077106671 120231320013