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12300312121 = 611511133451
BaseRepresentation
bin10110111010010011…
…11101111000111001
31011202020012121010121
423131021331320321
5200142334441441
65352314213241
7613545633166
oct133511757071
934666177117
1012300312121
115242229609
122473424221
1312104416c6
1484987306d
154bece1dd1
hex2dd27de39

12300312121 has 8 divisors (see below), whose sum is σ = 12510324288. Its totient is φ = 12090570000.

The previous prime is 12300312043. The next prime is 12300312151. The reversal of 12300312121 is 12121300321.

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

It is a cyclic number.

It is not a de Polignac number, because 12300312121 - 27 = 12300311993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12300312095 and 12300312104.

It is not an unprimeable number, because it can be changed into a prime (12300312151) 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, 25446 + ... + 158896.

It is an arithmetic number, because the mean of its divisors is an integer number (1563790536).

Almost surely, 212300312121 is an apocalyptic number.

It is an amenable number.

12300312121 is a deficient number, since it is larger than the sum of its proper divisors (210012167).

12300312121 is a wasteful number, since it uses less digits than its factorization.

12300312121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135023.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12300312121 its reverse (12121300321), we get a palindrome (24421612442).

The spelling of 12300312121 in words is "twelve billion, three hundred million, three hundred twelve thousand, one hundred twenty-one".

Divisors: 1 61 1511 92171 133451 8140511 201644461 12300312121