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12311132210 = 251394701017
BaseRepresentation
bin10110111011100110…
…01111100000110010
31011202222120022111122
423131303033200302
5200203122212320
65353342142242
7614036616506
oct133563174062
934688508448
1012311132210
115248349933
122476b81982
13121275c620
1484b08c306
154c0c2cd25
hex2ddccf832

12311132210 has 16 divisors (see below), whose sum is σ = 23864656536. Its totient is φ = 4545648768.

The previous prime is 12311132209. The next prime is 12311132263. The reversal of 12311132210 is 1223111321.

It can be written as a sum of positive squares in 4 ways, for example, as 9064753681 + 3246378529 = 95209^2 + 56977^2 .

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 7 ways as a sum of consecutive naturals, for example, 47350379 + ... + 47350638.

Almost surely, 212311132210 is an apocalyptic number.

12311132210 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311132210 is a deficient number, since it is larger than the sum of its proper divisors (11553524326).

12311132210 is a wasteful number, since it uses less digits than its factorization.

12311132210 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 94701037.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12311132210 its reverse (1223111321), we get a palindrome (13534243531).

The spelling of 12311132210 in words is "twelve billion, three hundred eleven million, one hundred thirty-two thousand, two hundred ten".

Divisors: 1 2 5 10 13 26 65 130 94701017 189402034 473505085 947010170 1231113221 2462226442 6155566105 12311132210