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12031230343 = 111318349223
BaseRepresentation
bin10110011010001111…
…00000000110000111
31011001110212211022211
423031013200012013
5144114443332333
65305503004251
7604100525206
oct131507400607
934043784284
1012031230343
115114352480
1223b9299687
13119977a812
14821c2b23d
154a638decd
hex2cd1e0187

12031230343 has 8 divisors (see below), whose sum is σ = 13225170816. Its totient is φ = 10853988600.

The previous prime is 12031230313. The next prime is 12031230359. The reversal of 12031230343 is 34303213021.

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 12031230343 - 25 = 12031230311 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031230313) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4173171 + ... + 4176052.

It is an arithmetic number, because the mean of its divisors is an integer number (1653146352).

Almost surely, 212031230343 is an apocalyptic number.

12031230343 is a deficient number, since it is larger than the sum of its proper divisors (1193940473).

12031230343 is a wasteful number, since it uses less digits than its factorization.

12031230343 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8349365.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12031230343 its reverse (34303213021), we get a palindrome (46334443364).

The spelling of 12031230343 in words is "twelve billion, thirty-one million, two hundred thirty thousand, three hundred forty-three".

Divisors: 1 11 131 1441 8349223 91841453 1093748213 12031230343