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212320212133 = 19237131721587
BaseRepresentation
bin1100010110111101000…
…1010101010010100101
3202022000221221022022111
43011233101111102211
511434312433242013
6241312155001021
721224331011551
oct3055721252245
9668027838274
10212320212133
11820542519a7
1235195739171
131703890a623
14a3c2454861
1557c9d9773d
hex316f4554a5

212320212133 has 32 divisors (see below), whose sum is σ = 237253847040. Its totient is φ = 189082998720.

The previous prime is 212320212121. The next prime is 212320212151. The reversal of 212320212133 is 331212023212.

212320212133 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 212320212133 - 25 = 212320212101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320242133) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 9824766 + ... + 9846352.

It is an arithmetic number, because the mean of its divisors is an integer number (7414182720).

Almost surely, 2212320212133 is an apocalyptic number.

212320212133 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

It is an amenable number.

212320212133 is a deficient number, since it is larger than the sum of its proper divisors (24933634907).

212320212133 is a wasteful number, since it uses less digits than its factorization.

212320212133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 22017.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212320212133 its reverse (331212023212), we get a palindrome (543532235345).

The spelling of 212320212133 in words is "two hundred twelve billion, three hundred twenty million, two hundred twelve thousand, one hundred thirty-three".

Divisors: 1 19 23 71 317 437 1349 1633 6023 7291 21587 22507 31027 138529 410153 427633 496501 517661 1532677 6843079 9433519 9835559 29120863 35251571 130018501 157390817 485858609 669779849 2990425523 9231313571 11174748007 212320212133