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12040512344223 = 311397919052923
BaseRepresentation
bin1010111100110110011001…
…1101100001000010011111
31120122001200000012102102220
42233031212131201002133
53034232432130003343
641335200210120423
72351620056162156
oct257154635410237
946561600172386
1012040512344223
113922397360720
121425647280113
13694552959abc
142d8a9a23659d
1515d3048ad183
hexaf36676109f

12040512344223 has 16 divisors (see below), whose sum is σ = 17557587060096. Its totient is φ = 7278899142240.

The previous prime is 12040512344191. The next prime is 12040512344291. The reversal of 12040512344223 is 32244321504021.

It is a happy number.

It is not a de Polignac number, because 12040512344223 - 25 = 12040512344191 is a prime.

It is a super-2 number, since 2×120405123442232 (a number of 27 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12040512349223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 459513361 + ... + 459539562.

It is an arithmetic number, because the mean of its divisors is an integer number (1097349191256).

Almost surely, 212040512344223 is an apocalyptic number.

12040512344223 is a deficient number, since it is larger than the sum of its proper divisors (5517074715873).

12040512344223 is a wasteful number, since it uses less digits than its factorization.

12040512344223 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 919053334.

The product of its (nonzero) digits is 46080, while the sum is 33.

Adding to 12040512344223 its reverse (32244321504021), we get a palindrome (44284833848244).

The spelling of 12040512344223 in words is "twelve trillion, forty billion, five hundred twelve million, three hundred forty-four thousand, two hundred twenty-three".

Divisors: 1 3 11 33 397 1191 4367 13101 919052923 2757158769 10109582153 30328746459 364864010431 1094592031293 4013504114741 12040512344223