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12133121120 = 255671131821
BaseRepresentation
bin10110100110011000…
…01011110001100000
31011022120121102012022
423103030023301200
5144322034333440
65323542521012
7606445553651
oct132314136140
934276542168
1012133121120
11516691552a
122427436168
1311b4903b13
14831591528
154b02b8cb5
hex2d330bc60

12133121120 has 48 divisors (see below), whose sum is σ = 29092352688. Its totient is φ = 4780807680.

The previous prime is 12133121087. The next prime is 12133121177. The reversal of 12133121120 is 2112133121.

It is a super-2 number, since 2×121331211202 (a number of 21 digits) contains 22 as substring.

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, 555191 + ... + 576630.

It is an arithmetic number, because the mean of its divisors is an integer number (606090681).

Almost surely, 212133121120 is an apocalyptic number.

12133121120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12133121120 is an abundant number, since it is smaller than the sum of its proper divisors (16959231568).

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

12133121120 is a wasteful number, since it uses less digits than its factorization.

12133121120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1131903 (or 1131895 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 12133121120 its reverse (2112133121), we get a palindrome (14245254241).

The spelling of 12133121120 in words is "twelve billion, one hundred thirty-three million, one hundred twenty-one thousand, one hundred twenty".

Divisors: 1 2 4 5 8 10 16 20 32 40 67 80 134 160 268 335 536 670 1072 1340 2144 2680 5360 10720 1131821 2263642 4527284 5659105 9054568 11318210 18109136 22636420 36218272 45272840 75832007 90545680 151664014 181091360 303328028 379160035 606656056 758320070 1213312112 1516640140 2426624224 3033280280 6066560560 12133121120