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12323223102131 = 99554912378319
BaseRepresentation
bin1011001101010011100101…
…0101011110001010110011
31121122002101121100221201022
42303110321111132022303
53103400430103232011
642113113250530055
72411215646031104
oct263247125361263
947562347327638
1012323223102131
113a212821a2497
1214703a659692b
136b50c8893036
143086390c63ab
1516584e2ad8db
hexb353955e2b3

12323223102131 has 4 divisors (see below), whose sum is σ = 12323236476000. Its totient is φ = 12323209728264.

The previous prime is 12323223102109. The next prime is 12323223102137. The reversal of 12323223102131 is 13120132232321.

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 12323223102131 - 210 = 12323223101107 is a prime.

It is a super-2 number, since 2×123232231021312 (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12323223102131.

It is not an unprimeable number, because it can be changed into a prime (12323223102137) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5193611 + ... + 7184708.

It is an arithmetic number, because the mean of its divisors is an integer number (3080809119000).

Almost surely, 212323223102131 is an apocalyptic number.

12323223102131 is a deficient number, since it is larger than the sum of its proper divisors (13373869).

12323223102131 is an equidigital number, since it uses as much as digits as its factorization.

12323223102131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13373868.

The product of its (nonzero) digits is 2592, while the sum is 26.

Adding to 12323223102131 its reverse (13120132232321), we get a palindrome (25443355334452).

The spelling of 12323223102131 in words is "twelve trillion, three hundred twenty-three billion, two hundred twenty-three million, one hundred two thousand, one hundred thirty-one".

Divisors: 1 995549 12378319 12323223102131