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121100110232 = 23172357116779
BaseRepresentation
bin111000011001000100…
…0010000100110011000
3102120120200020000000212
41300302020100212120
53441003112011412
6131344351350252
711514654644603
oct1606210204630
9376520200025
10121100110232
11473a3945232
121b578222388
13b55c0a627a
145c0b4b333a
15323b85e222
hex1c32210998

121100110232 has 64 divisors (see below), whose sum is σ = 250953292800. Its totient is φ = 54492951040.

The previous prime is 121100110213. The next prime is 121100110237. The reversal of 121100110232 is 232011001121.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (121100110237) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 17860619 + ... + 17867397.

It is an arithmetic number, because the mean of its divisors is an integer number (3921145200).

Almost surely, 2121100110232 is an apocalyptic number.

It is an amenable number.

121100110232 is an abundant number, since it is smaller than the sum of its proper divisors (129853182568).

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

121100110232 is a wasteful number, since it uses less digits than its factorization.

121100110232 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12536 (or 12532 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 121100110232 its reverse (232011001121), we get a palindrome (353111111353).

The spelling of 121100110232 in words is "one hundred twenty-one billion, one hundred million, one hundred ten thousand, two hundred thirty-two".

Divisors: 1 2 4 8 17 23 34 46 68 92 136 184 391 782 1564 3128 5711 6779 11422 13558 22844 27116 45688 54232 97087 115243 131353 155917 194174 230486 262706 311834 388348 460972 525412 623668 776696 921944 1050824 1247336 2233001 2650589 4466002 5301178 8932004 10602356 17864008 21204712 38714869 77429738 154859476 309718952 658152773 890441987 1316305546 1780883974 2632611092 3561767948 5265222184 7123535896 15137513779 30275027558 60550055116 121100110232