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12340323331 = 72376647971
BaseRepresentation
bin10110111111000101…
…00110010000000011
31011212000111101012021
423133202212100003
5200233110321311
65400303542311
7614543006020
oct133742462003
934760441167
1012340323331
115262877626
1224848ba997
13121881038b
14850cca547
154c3597171
hex2df8a6403

12340323331 has 8 divisors (see below), whose sum is σ = 14716410624. Its totient is φ = 10117532040.

The previous prime is 12340323329. The next prime is 12340323349. The reversal of 12340323331 is 13332304321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12340323331 - 21 = 12340323329 is a prime.

It is a super-2 number, since 2×123403233312 (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 = 12340323296 and 12340323305.

It is not an unprimeable number, because it can be changed into a prime (12340323311) 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, 38323825 + ... + 38324146.

It is an arithmetic number, because the mean of its divisors is an integer number (1839551328).

Almost surely, 212340323331 is an apocalyptic number.

12340323331 is a deficient number, since it is larger than the sum of its proper divisors (2376087293).

12340323331 is an equidigital number, since it uses as much as digits as its factorization.

12340323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 76648001.

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

Adding to 12340323331 its reverse (13332304321), we get a palindrome (25672627652).

The spelling of 12340323331 in words is "twelve billion, three hundred forty million, three hundred twenty-three thousand, three hundred thirty-one".

Divisors: 1 7 23 161 76647971 536535797 1762903333 12340323331