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20124212110243 = 55408736319589
BaseRepresentation
bin1001001001101100010001…
…00000111010001110100011
32122020212002221110111011021
410210312020200322032203
510114203341300011433
6110444534014430311
74144632510364033
oct444661040721643
978225087414137
1020124212110243
1164596a310a9aa
122310259b02397
13b2c922027017
144d8034b6d8c3
1524d724a0e22d
hex124d8883a3a3

20124212110243 has 4 divisors (see below), whose sum is σ = 20124248983920. Its totient is φ = 20124175236568.

The previous prime is 20124212110199. The next prime is 20124212110283. The reversal of 20124212110243 is 34201121242102.

Adding to 20124212110243 its reverse (34201121242102), we get a palindrome (54325333352345).

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20124212110243 - 213 = 20124212102051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20124212110283) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17605708 + ... + 18713881.

It is an arithmetic number, because the mean of its divisors is an integer number (5031062245980).

Almost surely, 220124212110243 is an apocalyptic number.

20124212110243 is a deficient number, since it is larger than the sum of its proper divisors (36873677).

20124212110243 is an equidigital number, since it uses as much as digits as its factorization.

20124212110243 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36873676.

The product of its (nonzero) digits is 1536, while the sum is 25.

The spelling of 20124212110243 in words is "twenty trillion, one hundred twenty-four billion, two hundred twelve million, one hundred ten thousand, two hundred forty-three".

Divisors: 1 554087 36319589 20124212110243