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13120103121212 = 2217631305772889
BaseRepresentation
bin1011111011101100001100…
…0101100000000100111100
31201110021021112201020111002
42332323003011200010330
53204424432344334322
643523143035145432
72522616246315623
oct276730305400474
951407245636432
1013120103121212
1141a922819835a
12157a91bba5278
137422b3339b49
14335032d326ba
1517b43d70bc92
hexbeec316013c

13120103121212 has 24 divisors (see below), whose sum is σ = 24349306776480. Its totient is φ = 6164381422080.

The previous prime is 13120103121173. The next prime is 13120103121253. The reversal of 13120103121212 is 21212130102131.

It is a super-2 number, since 2×131201031212122 (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152843537 + ... + 152929352.

It is an arithmetic number, because the mean of its divisors is an integer number (1014554449020).

Almost surely, 213120103121212 is an apocalyptic number.

It is an amenable number.

13120103121212 is a deficient number, since it is larger than the sum of its proper divisors (11229203655268).

13120103121212 is a wasteful number, since it uses less digits than its factorization.

13120103121212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 305773541 (or 305773539 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 20.

Adding to 13120103121212 its reverse (21212130102131), we get a palindrome (34332233223343).

The spelling of 13120103121212 in words is "thirteen trillion, one hundred twenty billion, one hundred three million, one hundred twenty-one thousand, two hundred twelve".

Divisors: 1 2 4 17 34 68 631 1262 2524 10727 21454 42908 305772889 611545778 1223091556 5198139113 10396278226 20792556452 192942692959 385885385918 771770771836 3280025780303 6560051560606 13120103121212