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12320131103231 = 72749576401069
BaseRepresentation
bin1011001101001000000100…
…0010011011100111111111
31121121210102010020010121112
42303102001002123213333
53103323112030300411
642111442354352235
72411046222336050
oct263220102334777
947553363203545
1012320131103231
113a1aa359059a6
12146b882b8b67b
136b4a25109aa3
143084245b2727
1516571cae5b8b
hexb348109b9ff

12320131103231 has 8 divisors (see below), whose sum is σ = 14080203240480. Its totient is φ = 10560072318048.

The previous prime is 12320131103207. The next prime is 12320131103263. The reversal of 12320131103231 is 13230113102321.

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 12320131103231 - 234 = 12302951234047 is a prime.

It is a super-2 number, since 2×123201311032312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12320131103197 and 12320131103206.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12320131103431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1275836 + ... + 5125233.

It is an arithmetic number, because the mean of its divisors is an integer number (1760025405060).

Almost surely, 212320131103231 is an apocalyptic number.

12320131103231 is a deficient number, since it is larger than the sum of its proper divisors (1760072137249).

12320131103231 is an equidigital number, since it uses as much as digits as its factorization.

12320131103231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6676033.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 12320131103231 its reverse (13230113102321), we get a palindrome (25550244205552).

The spelling of 12320131103231 in words is "twelve trillion, three hundred twenty billion, one hundred thirty-one million, one hundred three thousand, two hundred thirty-one".

Divisors: 1 7 274957 1924699 6401069 44807483 1760018729033 12320131103231