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12330322331 = 17987685513
BaseRepresentation
bin10110111101111000…
…11100100110011011
31011211022200021101212
423132330130212123
5200223030303311
65355305333335
7614362003415
oct133674344633
934738607355
1012330322331
115258166738
12248149724b
13121671b222
1484d8459b5
154c276dc8b
hex2def1c99b

12330322331 has 4 divisors (see below), whose sum is σ = 12331025832. Its totient is φ = 12329618832.

The previous prime is 12330322297. The next prime is 12330322337. The reversal of 12330322331 is 13322303321.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13322303321 = 19701173859.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12330322331 is a prime.

It is a super-2 number, since 2×123303223312 (a number of 21 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 = 12330322297 and 12330322306.

It is not an unprimeable number, because it can be changed into a prime (12330322337) 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, 324770 + ... + 360743.

It is an arithmetic number, because the mean of its divisors is an integer number (3082756458).

Almost surely, 212330322331 is an apocalyptic number.

12330322331 is a deficient number, since it is larger than the sum of its proper divisors (703501).

12330322331 is an equidigital number, since it uses as much as digits as its factorization.

12330322331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703500.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 12330322331 its reverse (13322303321), we get a palindrome (25652625652).

The spelling of 12330322331 in words is "twelve billion, three hundred thirty million, three hundred twenty-two thousand, three hundred thirty-one".

Divisors: 1 17987 685513 12330322331