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12123011095 = 513510136563
BaseRepresentation
bin10110100101001011…
…00111100000010111
31011021212120202211221
423102211213200113
5144311442323340
65322542111211
7606263615446
oct132245474027
934255522757
1012123011095
11516113a738
122423b7b507
1311b27a4160
148300bcd5d
154ae46d44a
hex2d2967817

12123011095 has 16 divisors (see below), whose sum is σ = 15670160352. Its totient is φ = 8950377600.

The previous prime is 12123011081. The next prime is 12123011167. The reversal of 12123011095 is 59011032121.

12123011095 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a de Polignac number, because none of the positive numbers 2k-12123011095 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

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, 313284 + ... + 349846.

It is an arithmetic number, because the mean of its divisors is an integer number (979385022).

Almost surely, 212123011095 is an apocalyptic number.

12123011095 is a deficient number, since it is larger than the sum of its proper divisors (3547149257).

12123011095 is a wasteful number, since it uses less digits than its factorization.

12123011095 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41682.

The product of its (nonzero) digits is 540, while the sum is 25.

The spelling of 12123011095 in words is "twelve billion, one hundred twenty-three million, eleven thousand, ninety-five".

Divisors: 1 5 13 65 5101 25505 36563 66313 182815 331565 475319 2376595 186507863 932539315 2424602219 12123011095