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123012305113 = 1992271727211
BaseRepresentation
bin111001010010000011…
…0101101000011011001
3102202111221100120021111
41302210012231003121
54003412122230423
6132302220340321
711613234225025
oct1624406550331
9382457316244
10123012305113
114819526a585
121ba106a46a1
13b7a52b9729
145d4d433385
1532ee67a60d
hex1ca41ad0d9

123012305113 has 8 divisors (see below), whose sum is σ = 123640443200. Its totient is φ = 122384267280.

The previous prime is 123012305111. The next prime is 123012305147. The reversal of 123012305113 is 311503210321.

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 123012305113 - 21 = 123012305111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123012305111) 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 7 ways as a sum of consecutive naturals, for example, 4507078 + ... + 4534288.

It is an arithmetic number, because the mean of its divisors is an integer number (15455055400).

Almost surely, 2123012305113 is an apocalyptic number.

It is an amenable number.

123012305113 is a deficient number, since it is larger than the sum of its proper divisors (628138087).

123012305113 is a wasteful number, since it uses less digits than its factorization.

123012305113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 50127.

The product of its (nonzero) digits is 540, while the sum is 22.

Adding to 123012305113 its reverse (311503210321), we get a palindrome (434515515434).

The spelling of 123012305113 in words is "one hundred twenty-three billion, twelve million, three hundred five thousand, one hundred thirteen".

Divisors: 1 199 22717 27211 4520683 5414989 618152287 123012305113