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12000123300020 = 2252011298362091
BaseRepresentation
bin1010111010011111111100…
…0101100010100010110100
31120111012102020002101121212
42232213333011202202310
53033102223031100040
641304440332500552
72345660146026542
oct256477705424264
946435366071555
1012000123300020
11390725083aa49
12141985501a758
136907b710088b
142d6b48116d92
1515c23db78d65
hexae9ff1628b4

12000123300020 has 24 divisors (see below), whose sum is σ = 25212790222368. Its totient is φ = 4797662407200.

The previous prime is 12000123300019. The next prime is 12000123300049. The reversal of 12000123300020 is 2000332100021.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12000123299968 and 12000123300004.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 149140826 + ... + 149221265.

It is an arithmetic number, because the mean of its divisors is an integer number (1050532925932).

Almost surely, 212000123300020 is an apocalyptic number.

12000123300020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12000123300020 is an abundant number, since it is smaller than the sum of its proper divisors (13212666922348).

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

12000123300020 is a wasteful number, since it uses less digits than its factorization.

12000123300020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 298364111 (or 298364109 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12000123300020 its reverse (2000332100021), we get a palindrome (14000455400041).

The spelling of 12000123300020 in words is "twelve trillion, one hundred twenty-three million, three hundred thousand, twenty".

Divisors: 1 2 4 5 10 20 2011 4022 8044 10055 20110 40220 298362091 596724182 1193448364 1491810455 2983620910 5967241820 600006165001 1200012330002 2400024660004 3000030825005 6000061650010 12000123300020