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1230020012130 = 235713450556781
BaseRepresentation
bin10001111001100010111…
…001111110100001100010
311100120220012122201211120
4101321202321332201202
5130123040110342010
62341021405353110
7154603020411210
oct21714271764142
94316805581746
101230020012130
11434715259578
1217a477268796
138bcb4b688b0
14437674a1cb0
1521ee0468e70
hex11e62e7e862

1230020012130 has 64 divisors (see below), whose sum is σ = 3633289890048. Its totient is φ = 259520705280.

The previous prime is 1230020012119. The next prime is 1230020012131. The reversal of 1230020012130 is 312100200321.

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 (1230020012131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 225275661 + ... + 225281120.

It is an arithmetic number, because the mean of its divisors is an integer number (56770154532).

Almost surely, 21230020012130 is an apocalyptic number.

1230020012130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1230020012130 is an abundant number, since it is smaller than the sum of its proper divisors (2403269877918).

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

1230020012130 is a wasteful number, since it uses less digits than its factorization.

1230020012130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450556811.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1230020012130 its reverse (312100200321), we get a palindrome (1542120212451).

The spelling of 1230020012130 in words is "one trillion, two hundred thirty billion, twenty million, twelve thousand, one hundred thirty".

Divisors: 1 2 3 5 6 7 10 13 14 15 21 26 30 35 39 42 65 70 78 91 105 130 182 195 210 273 390 455 546 910 1365 2730 450556781 901113562 1351670343 2252783905 2703340686 3153897467 4505567810 5857238153 6307794934 6758351715 9461692401 11714476306 13516703430 15769487335 17571714459 18923384802 29286190765 31538974670 35143428918 41000667071 47308462005 58572381530 82001334142 87858572295 94616924010 123002001213 175717144590 205003335355 246004002426 410006670710 615010006065 1230020012130