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12320013211 = 112313284461
BaseRepresentation
bin10110111100101010…
…00111101110011011
31011210121021111221121
423132111013232123
5200212410410321
65354300350111
7614205245602
oct133625075633
934717244847
1012320013211
115252365300
122479b45337
13121454ba5c
1484c320a39
154c18d4441
hex2de547b9b

12320013211 has 12 divisors (see below), whose sum is σ = 13978670272. Its totient is φ = 10838718000.

The previous prime is 12320013179. The next prime is 12320013221. The reversal of 12320013211 is 11231002321.

It is not a de Polignac number, because 12320013211 - 25 = 12320013179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12320013221) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1638480 + ... + 1645981.

Almost surely, 212320013211 is an apocalyptic number.

12320013211 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12320013211 is a deficient number, since it is larger than the sum of its proper divisors (1658657061).

12320013211 is a wasteful number, since it uses less digits than its factorization.

12320013211 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3284514 (or 3284503 counting only the distinct ones).

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

Adding to 12320013211 its reverse (11231002321), we get a palindrome (23551015532).

The spelling of 12320013211 in words is "twelve billion, three hundred twenty million, thirteen thousand, two hundred eleven".

Divisors: 1 11 31 121 341 3751 3284461 36129071 101818291 397419781 1120001201 12320013211