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12301201312 = 251920232239
BaseRepresentation
bin10110111010011010…
…10110111110100000
31011202021212202212121
423131031112332200
5200143101420222
65352345234024
7613556325451
oct133515267640
934667782777
1012301201312
115242786684
122473792914
13121069335a
14849a25128
154bee1a5c7
hex2dd356fa0

12301201312 has 24 divisors (see below), whose sum is σ = 25492622400. Its totient is φ = 5826884544.

The previous prime is 12301201303. The next prime is 12301201321. The reversal of 12301201312 is 21310210321.

It is an interprime number because it is at equal distance from previous prime (12301201303) and next prime (12301201321).

It is a Harshad number since it is a multiple of its sum of digits (16).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10115512 + ... + 10116727.

It is an arithmetic number, because the mean of its divisors is an integer number (1062192600).

Almost surely, 212301201312 is an apocalyptic number.

It is an amenable number.

12301201312 is an abundant number, since it is smaller than the sum of its proper divisors (13191421088).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12301201312 is a wasteful number, since it uses less digits than its factorization.

12301201312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20232268 (or 20232260 counting only the distinct ones).

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

Adding to 12301201312 its reverse (21310210321), we get a palindrome (33611411633).

Subtracting 12301201312 from its reverse (21310210321), we obtain a palindrome (9009009009).

The spelling of 12301201312 in words is "twelve billion, three hundred one million, two hundred one thousand, three hundred twelve".

Divisors: 1 2 4 8 16 19 32 38 76 152 304 608 20232239 40464478 80928956 161857912 323715824 384412541 647431648 768825082 1537650164 3075300328 6150600656 12301201312