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121300323020 = 22553132186627
BaseRepresentation
bin111000011111000010…
…0000000101011001100
3102121002121221212100022
41300332010000223030
53441410340314040
6131420302521312
711522635506422
oct1607604005314
9377077855308
10121300323020
1147496963048
121b613296238
13b591706386
145c29d0d112
15324e20b6b5
hex1c3e100acc

121300323020 has 48 divisors (see below), whose sum is σ = 259736385888. Its totient is φ = 47568069120.

The previous prime is 121300323007. The next prime is 121300323031. The reversal of 121300323020 is 20323003121.

It is a self number, because there is not a number n which added to its sum of digits gives 121300323020.

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, 1356947 + ... + 1443573.

It is an arithmetic number, because the mean of its divisors is an integer number (5411174706).

Almost surely, 2121300323020 is an apocalyptic number.

121300323020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

121300323020 is an abundant number, since it is smaller than the sum of its proper divisors (138436062868).

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

121300323020 is a wasteful number, since it uses less digits than its factorization.

121300323020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 88010 (or 88008 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 121300323020 its reverse (20323003121), we get a palindrome (141623326141).

The spelling of 121300323020 in words is "one hundred twenty-one billion, three hundred million, three hundred twenty-three thousand, twenty".

Divisors: 1 2 4 5 10 20 53 106 212 265 530 1060 1321 2642 5284 6605 13210 26420 70013 86627 140026 173254 280052 346508 350065 433135 700130 866270 1400260 1732540 4591231 9182462 18364924 22956155 45912310 91824620 114434267 228868534 457737068 572171335 1144342670 2288685340 6065016151 12130032302 24260064604 30325080755 60650161510 121300323020