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13121210223110 = 25112127827310321
BaseRepresentation
bin1011111011110000010100…
…0100110000101000000110
31201110101010200220211210002
42332330011010300220012
53204434214304114420
643523444544201302
72522655551451143
oct276740504605006
951411120824702
1013121210223110
1141a9746113400
12157ab8a909232
1374242b806222
143350d9d9d3ca
1517b4a59e7075
hexbef05130a06

13121210223110 has 96 divisors (see below), whose sum is σ = 26170588394496. Its totient is φ = 4732748697600.

The previous prime is 13121210223101. The next prime is 13121210223139. The reversal of 13121210223110 is 1132201212131.

It is a congruent number.

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 47 ways as a sum of consecutive naturals, for example, 1271306750 + ... + 1271317070.

It is an arithmetic number, because the mean of its divisors is an integer number (272610295776).

Almost surely, 213121210223110 is an apocalyptic number.

13121210223110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13121210223110 is a deficient number, since it is larger than the sum of its proper divisors (13049378171386).

13121210223110 is a wasteful number, since it uses less digits than its factorization.

13121210223110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18750 (or 18739 counting only the distinct ones).

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

Adding to 13121210223110 its reverse (1132201212131), we get a palindrome (14253411435241).

The spelling of 13121210223110 in words is "thirteen trillion, one hundred twenty-one billion, two hundred ten million, two hundred twenty-three thousand, one hundred ten".

Divisors: 1 2 5 10 11 22 55 110 121 127 242 254 605 635 1210 1270 1397 2794 6985 8273 10321 13970 15367 16546 20642 30734 41365 51605 76835 82730 91003 103210 113531 153670 182006 227062 455015 567655 910030 1001033 1050671 1135310 1248841 1310767 2002066 2101342 2497682 2621534 5005165 5253355 6244205 6553835 10010330 10506710 11557381 12488410 13107670 14418437 23114762 28836874 57786905 72092185 85385633 115573810 127131191 144184370 158602807 170771266 254262382 317205614 426928165 635655955 793014035 853856330 939241963 1271311910 1586028070 1878483926 4696209815 9392419630 10331661593 10843975391 20663323186 21687950782 51658307965 54219876955 103316615930 108439753910 119283729301 238567458602 596418646505 1192837293010 1312121022311 2624242044622 6560605111555 13121210223110