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12311110019 = 1323404910169
BaseRepresentation
bin10110111011100110…
…01010000110000011
31011202222112012001202
423131303022012003
5200203121010034
65353341451415
7614036465015
oct133563120603
934688465052
1012311110019
11524833419a
122476b70b6b
1312127524b0
1484b0841b5
154c0c2647e
hex2ddcca183

12311110019 has 16 divisors (see below), whose sum is σ = 13839336000. Its totient is φ = 10866256896.

The previous prime is 12311110001. The next prime is 12311110027. The reversal of 12311110019 is 91001111321.

It is a happy number.

12311110019 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12311110019 - 212 = 12311105923 is a prime.

It is a super-2 number, since 2×123111100192 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12311110919) 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, 1205567 + ... + 1215735.

It is an arithmetic number, because the mean of its divisors is an integer number (864958500).

Almost surely, 212311110019 is an apocalyptic number.

12311110019 is a deficient number, since it is larger than the sum of its proper divisors (1528225981).

12311110019 is a wasteful number, since it uses less digits than its factorization.

12311110019 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14254.

The product of its (nonzero) digits is 54, while the sum is 20.

The spelling of 12311110019 in words is "twelve billion, three hundred eleven million, one hundred ten thousand, nineteen".

Divisors: 1 13 23 299 4049 10169 52637 93127 132197 233887 1210651 3040531 41174281 535265653 947008463 12311110019