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212130031102 = 21185911224999
BaseRepresentation
bin1100010110001111101…
…1110110010111111110
3202021112201002002222121
43011203323312113332
511433420241443402
6241241242433154
721216531341113
oct3054373662776
9667481062877
10212130031102
1181a669660a0
1235141b027ba
13170083b0682
14a3a50aa90a
1557b832c837
hex3163ef65fe

212130031102 has 16 divisors (see below), whose sum is σ = 347526000000. Its totient is φ = 96310482840.

The previous prime is 212130031079. The next prime is 212130031103. The reversal of 212130031102 is 201130031212.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212130031103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5593602 + ... + 5631397.

It is an arithmetic number, because the mean of its divisors is an integer number (21720375000).

Almost surely, 2212130031102 is an apocalyptic number.

212130031102 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

212130031102 is a deficient number, since it is larger than the sum of its proper divisors (135395968898).

212130031102 is a wasteful number, since it uses less digits than its factorization.

212130031102 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11225871.

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

Adding to 212130031102 its reverse (201130031212), we get a palindrome (413260062314).

The spelling of 212130031102 in words is "two hundred twelve billion, one hundred thirty million, thirty-one thousand, one hundred two".

Divisors: 1 2 11 22 859 1718 9449 18898 11224999 22449998 123474989 246949978 9642274141 19284548282 106065015551 212130031102