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12103013211 = 3311071677283
BaseRepresentation
bin10110100010110010…
…10101001101011011
31011020110221202220120
423101121111031123
5144241332410321
65320545324323
7605631625542
oct132131251533
934213852816
1012103013211
115150920a63
1224193366a3
1311ab5c19a3
1482b595159
154ac81cec6
hex2d165535b

12103013211 has 32 divisors (see below), whose sum is σ = 16916594688. Its totient is φ = 7688044320.

The previous prime is 12103013191. The next prime is 12103013227. The reversal of 12103013211 is 11231030121.

It is a happy number.

It is not a de Polignac number, because 12103013211 - 211 = 12103011163 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12103013291) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1658176 + ... + 1665458.

It is an arithmetic number, because the mean of its divisors is an integer number (528643584).

Almost surely, 212103013211 is an apocalyptic number.

12103013211 is a deficient number, since it is larger than the sum of its proper divisors (4813581477).

12103013211 is a wasteful number, since it uses less digits than its factorization.

12103013211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7591.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12103013211 its reverse (11231030121), we get a palindrome (23334043332).

The spelling of 12103013211 in words is "twelve billion, one hundred three million, thirteen thousand, two hundred eleven".

Divisors: 1 3 31 93 107 167 321 501 3317 5177 7283 9951 15531 17869 21849 53607 225773 553939 677319 779281 1216261 1661817 2337843 3648783 24157711 37704091 72473133 113112273 130139927 390419781 4034337737 12103013211