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121240130330 = 251110145723879
BaseRepresentation
bin111000011101001111…
…0011001001100011010
3102120221102200202111102
41300322132121030122
53441244433132310
6131410312431402
711521305050504
oct1607236311432
9376842622442
10121240130330
1147465990420
121b5b70a8562
13b5820bc7b7
145c21d20d74
153248cbb8a5
hex1c3a79931a

121240130330 has 64 divisors (see below), whose sum is σ = 240964865280. Its totient is φ = 43553472000.

The previous prime is 121240130293. The next prime is 121240130339. The reversal of 121240130330 is 33031042121.

It is not an unprimeable number, because it can be changed into a prime (121240130339) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5065331 + ... + 5089209.

It is an arithmetic number, because the mean of its divisors is an integer number (3765076020).

Almost surely, 2121240130330 is an apocalyptic number.

121240130330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121240130330 is a deficient number, since it is larger than the sum of its proper divisors (119724734950).

121240130330 is a wasteful number, since it uses less digits than its factorization.

121240130330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24455.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 121240130330 its reverse (33031042121), we get a palindrome (154271172451).

The spelling of 121240130330 in words is "one hundred twenty-one billion, two hundred forty million, one hundred thirty thousand, three hundred thirty".

Divisors: 1 2 5 10 11 22 55 101 110 202 457 505 914 1010 1111 2222 2285 4570 5027 5555 10054 11110 23879 25135 46157 47758 50270 92314 119395 230785 238790 262669 461570 507727 525338 1015454 1313345 2411779 2538635 2626690 4823558 5077270 10912703 12058895 21825406 24117790 26529569 53059138 54563515 109127030 120039733 132647845 240079466 265295690 600198665 1102183003 1200397330 2204366006 5510915015 11021830030 12124013033 24248026066 60620065165 121240130330