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20123411343 = 3717353159683
BaseRepresentation
bin10010101111011100…
…101110001110001111
31220221102202012210020
4102233130232032033
5312203043130333
613124454313223
71311451113510
oct225734561617
956842665706
1020123411343
118597160872
123a97358813
131b891274b9
14d8c84ca07
157cb9e73b3
hex4af72e38f

20123411343 has 32 divisors (see below), whose sum is σ = 32560206336. Its totient is φ = 10791948288.

The previous prime is 20123411327. The next prime is 20123411437. The reversal of 20123411343 is 34311432102.

It is a happy number.

It is not a de Polignac number, because 20123411343 - 24 = 20123411327 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20123415343) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 46180 + ... + 205862.

It is an arithmetic number, because the mean of its divisors is an integer number (1017506448).

Almost surely, 220123411343 is an apocalyptic number.

20123411343 is a deficient number, since it is larger than the sum of its proper divisors (12436794993).

20123411343 is a wasteful number, since it uses less digits than its factorization.

20123411343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160063.

The product of its (nonzero) digits is 1728, while the sum is 24.

Adding to 20123411343 its reverse (34311432102), we get a palindrome (54434843445).

The spelling of 20123411343 in words is "twenty billion, one hundred twenty-three million, four hundred eleven thousand, three hundred forty-three".

Divisors: 1 3 7 17 21 51 119 353 357 1059 2471 6001 7413 18003 42007 126021 159683 479049 1117781 2714611 3353343 8143833 19002277 56368099 57006831 169104297 394576693 958257683 1183730079 2874773049 6707803781 20123411343