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121201201230 = 2359931406811
BaseRepresentation
bin111000011100000100…
…1111001000001001110
3102120211201102221210220
41300320021321001032
53441210001414410
6131402402212210
711520323132544
oct1607011710116
9376751387726
10121201201230
1147445a1140a
121b5a6054066
13b57700c525
145c1aaa9d94
15324567c070
hex1c3827904e

121201201230 has 32 divisors (see below), whose sum is σ = 290912888448. Its totient is φ = 32316986400.

The previous prime is 121201201223. The next prime is 121201201273. The reversal of 121201201230 is 32102102121.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a congruent number.

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, 94525 + ... + 501335.

It is an arithmetic number, because the mean of its divisors is an integer number (9091027764).

Almost surely, 2121201201230 is an apocalyptic number.

121201201230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

121201201230 is an abundant number, since it is smaller than the sum of its proper divisors (169711687218).

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

121201201230 is a wasteful number, since it uses less digits than its factorization.

121201201230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 416752.

The product of its (nonzero) digits is 48, while the sum is 15.

Adding to 121201201230 its reverse (32102102121), we get a palindrome (153303303351).

The spelling of 121201201230 in words is "one hundred twenty-one billion, two hundred one million, two hundred one thousand, two hundred thirty".

Divisors: 1 2 3 5 6 10 15 30 9931 19862 29793 49655 59586 99310 148965 297930 406811 813622 1220433 2034055 2440866 4068110 6102165 12204330 4040040041 8080080082 12120120123 20200200205 24240240246 40400400410 60600600615 121201201230