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12331322323 = 40387305329
BaseRepresentation
bin10110111110000000…
…10000101111010011
31011211101120002010121
423133000100233103
5200223304303243
65355343011111
7614403340015
oct133700205723
934741502117
1012331322323
115258789a81
122481899a97
1312169ab438
1484da261b5
154c28ba1ed
hex2df010bd3

12331322323 has 4 divisors (see below), whose sum is σ = 12331668040. Its totient is φ = 12330976608.

The previous prime is 12331322309. The next prime is 12331322359. The reversal of 12331322323 is 32322313321.

12331322323 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32322313321 = 59547835819.

It is a cyclic number.

It is not a de Polignac number, because 12331322323 - 29 = 12331321811 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12331322303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 112278 + ... + 193051.

It is an arithmetic number, because the mean of its divisors is an integer number (3082917010).

Almost surely, 212331322323 is an apocalyptic number.

12331322323 is a deficient number, since it is larger than the sum of its proper divisors (345717).

12331322323 is an equidigital number, since it uses as much as digits as its factorization.

12331322323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 345716.

The product of its digits is 3888, while the sum is 25.

Adding to 12331322323 its reverse (32322313321), we get a palindrome (44653635644).

The spelling of 12331322323 in words is "twelve billion, three hundred thirty-one million, three hundred twenty-two thousand, three hundred twenty-three".

Divisors: 1 40387 305329 12331322323