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12120130102020 = 2235792556989473
BaseRepresentation
bin1011000001011111000000…
…0011001010001100000100
31120220200011201001120201020
42300113300003022030010
53042034011301231040
641435524431031140
72360436060022053
oct260276003121404
946820151046636
1012120130102020
113953133520556
121438b6706b4b0
1369bc00829ca5
142dc89031039a
15160414524cd0
hexb05f00ca304

12120130102020 has 48 divisors (see below), whose sum is σ = 34365938530560. Its totient is φ = 3191122861056.

The previous prime is 12120130101977. The next prime is 12120130102021. The reversal of 12120130102020 is 2020103102121.

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

It is not an unprimeable number, because it can be changed into a prime (12120130102021) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1278489997 + ... + 1278499476.

It is an arithmetic number, because the mean of its divisors is an integer number (715957052720).

Almost surely, 212120130102020 is an apocalyptic number.

12120130102020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12120130102020 is an abundant number, since it is smaller than the sum of its proper divisors (22245808428540).

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

12120130102020 is a wasteful number, since it uses less digits than its factorization.

12120130102020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2556989564 (or 2556989562 counting only the distinct ones).

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

Adding to 12120130102020 its reverse (2020103102121), we get a palindrome (14140233204141).

The spelling of 12120130102020 in words is "twelve trillion, one hundred twenty billion, one hundred thirty million, one hundred two thousand, twenty".

Divisors: 1 2 3 4 5 6 10 12 15 20 30 60 79 158 237 316 395 474 790 948 1185 1580 2370 4740 2556989473 5113978946 7670968419 10227957892 12784947365 15341936838 25569894730 30683873676 38354842095 51139789460 76709684190 153419368380 202002168367 404004336734 606006505101 808008673468 1010010841835 1212013010202 2020021683670 2424026020404 3030032525505 4040043367340 6060065051010 12120130102020