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121000003012 = 227171873135719
BaseRepresentation
bin111000010110000101…
…0011000010111000100
3102120022200212000202001
41300230022120113010
53440302000044022
6131330413555044
711512331025040
oct1605412302704
9376280760661
10121000003012
1147352390199
121b54a7a5a84
13b544425a25
145bdc095020
153232b87b27
hex1c2c2985c4

121000003012 has 48 divisors (see below), whose sum is σ = 256373994240. Its totient is φ = 48780306432.

The previous prime is 121000002911. The next prime is 121000003021. The reversal of 121000003012 is 210300000121.

It is a self number, because there is not a number n which added to its sum of digits gives 121000003012.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 823689 + ... + 959407.

It is an arithmetic number, because the mean of its divisors is an integer number (5341124880).

Almost surely, 2121000003012 is an apocalyptic number.

It is an amenable number.

121000003012 is an abundant number, since it is smaller than the sum of its proper divisors (135373991228).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

121000003012 is a wasteful number, since it uses less digits than its factorization.

121000003012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 137620 (or 137618 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 10.

Adding to 121000003012 its reverse (210300000121), we get a palindrome (331300003133).

The spelling of 121000003012 in words is "one hundred twenty-one billion, three thousand, twelve".

Divisors: 1 2 4 7 14 17 28 34 68 119 238 476 1873 3746 7492 13111 26222 31841 52444 63682 127364 135719 222887 271438 445774 542876 891548 950033 1900066 2307223 3800132 4614446 9228892 16150561 32301122 64602244 254201687 508403374 1016806748 1779411809 3558823618 4321428679 7117647236 8642857358 17285714716 30250000753 60500001506 121000003012