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13231331412112 = 2411592631268549
BaseRepresentation
bin1100000010001010100011…
…0011110000100010010000
31201211220101020100212012201
43000202220303300202100
53213240231320141422
644050220103332544
72533634504224252
oct300425063604220
951756336325181
1013231331412112
114241415707610
1215983a2151154
1374c92b1552a8
1433a5852cbcd2
1517e29d57c727
hexc08a8cf0890

13231331412112 has 40 divisors (see below), whose sum is σ = 27966717158400. Its totient is φ = 6014135326080.

The previous prime is 13231331412107. The next prime is 13231331412113. The reversal of 13231331412112 is 21121413313231.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (13231331412113) 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, 9796014 + ... + 11064562.

It is an arithmetic number, because the mean of its divisors is an integer number (699167928960).

Almost surely, 213231331412112 is an apocalyptic number.

It is an amenable number.

13231331412112 is an abundant number, since it is smaller than the sum of its proper divisors (14735385746288).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231331412112 is a wasteful number, since it uses less digits than its factorization.

13231331412112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1327831 (or 1327825 counting only the distinct ones).

The product of its digits is 2592, while the sum is 28.

Adding to 13231331412112 its reverse (21121413313231), we get a palindrome (34352744725343).

The spelling of 13231331412112 in words is "thirteen trillion, two hundred thirty-one billion, three hundred thirty-one million, four hundred twelve thousand, one hundred twelve".

Divisors: 1 2 4 8 11 16 22 44 88 176 59263 118526 237052 474104 651893 948208 1268549 1303786 2537098 2607572 5074196 5215144 10148392 10430288 13954039 20296784 27908078 55816156 111632312 223264624 75178019387 150356038774 300712077548 601424155096 826958213257 1202848310192 1653916426514 3307832853028 6615665706056 13231331412112