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12305141321 = 117027159193
BaseRepresentation
bin10110111010111000…
…11000111001001001
31011202120021221112212
423131130120321021
5200200104010241
65353005514505
7613634655404
oct133534307111
934676257485
1012305141321
115244a27890
122474b72a35
131211442815
1484a36cd3b
154c0447beb
hex2dd718e49

12305141321 has 8 divisors (see below), whose sum is σ = 13425785184. Its totient is φ = 11184829920.

The previous prime is 12305141249. The next prime is 12305141363. The reversal of 12305141321 is 12314150321.

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

It is a de Polignac number, because none of the positive numbers 2k-12305141321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12305141371) 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, 2300 + ... + 156893.

It is an arithmetic number, because the mean of its divisors is an integer number (1678223148).

Almost surely, 212305141321 is an apocalyptic number.

12305141321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

12305141321 is a deficient number, since it is larger than the sum of its proper divisors (1120643863).

12305141321 is a wasteful number, since it uses less digits than its factorization.

12305141321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 166231.

The product of its (nonzero) digits is 720, while the sum is 23.

Adding to 12305141321 its reverse (12314150321), we get a palindrome (24619291642).

The spelling of 12305141321 in words is "twelve billion, three hundred five million, one hundred forty-one thousand, three hundred twenty-one".

Divisors: 1 11 7027 77297 159193 1751123 1118649211 12305141321