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12443230420423 = 111517491409043
BaseRepresentation
bin1011010100010010101001…
…0101000011110111000111
31122001120011010022101000121
42311010222111003313013
53112332213441423143
642244201404122411
72422664564303455
oct265045225036707
948046133271017
1012443230420423
113a681651a5990
12148b6b8836407
136c351244044a
143103813b59d5
15168a24c0c7ed
hexb512a543dc7

12443230420423 has 8 divisors (see below), whose sum is σ = 13664330096256. Its totient is φ = 11237113563000.

The previous prime is 12443230420409. The next prime is 12443230420441. The reversal of 12443230420423 is 32402403234421.

12443230420423 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12443230420423 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12443230420723) 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, 3745702861 + ... + 3745706182.

It is an arithmetic number, because the mean of its divisors is an integer number (1708041262032).

Almost surely, 212443230420423 is an apocalyptic number.

12443230420423 is a deficient number, since it is larger than the sum of its proper divisors (1221099675833).

12443230420423 is a wasteful number, since it uses less digits than its factorization.

12443230420423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7491409205.

The product of its (nonzero) digits is 110592, while the sum is 34.

Adding to 12443230420423 its reverse (32402403234421), we get a palindrome (44845633654844).

The spelling of 12443230420423 in words is "twelve trillion, four hundred forty-three billion, two hundred thirty million, four hundred twenty thousand, four hundred twenty-three".

Divisors: 1 11 151 1661 7491409043 82405499473 1131202765493 12443230420423