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23112431223 = 3729257147671
BaseRepresentation
bin10101100001100110…
…111011011001110111
32012122202010011020020
4111201212323121313
5334313240244343
614341231340223
71445514265260
oct254146733167
965582104206
1023112431223
119890401732
124590381673
13224446600b
1411937d7967
1590411cb83
hex5619bb677

23112431223 has 32 divisors (see below), whose sum is σ = 36575400960. Its totient is φ = 12701982720.

The previous prime is 23112431183. The next prime is 23112431249. The reversal of 23112431223 is 32213421132.

It is not a de Polignac number, because 23112431223 - 28 = 23112430967 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 23112431193 and 23112431202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23112431273) 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, 82678 + ... + 230348.

It is an arithmetic number, because the mean of its divisors is an integer number (1142981280).

Almost surely, 223112431223 is an apocalyptic number.

23112431223 is a deficient number, since it is larger than the sum of its proper divisors (13462969737).

23112431223 is a wasteful number, since it uses less digits than its factorization.

23112431223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 147967.

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

Adding to 23112431223 its reverse (32213421132), we get a palindrome (55325852355).

The spelling of 23112431223 in words is "twenty-three billion, one hundred twelve million, four hundred thirty-one thousand, two hundred twenty-three".

Divisors: 1 3 7 21 29 87 203 257 609 771 1799 5397 7453 22359 52171 147671 156513 443013 1033697 3101091 4282459 12847377 29977213 37951447 89931639 113854341 265660129 796980387 1100591963 3301775889 7704143741 23112431223