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12032002131220 = 225601600106561
BaseRepresentation
bin1010111100010110101100…
…1101101000010100010100
31120121020200220201210212201
42233011223031220110110
53034113020021144340
641331231522454244
72351166141440431
oct257055315502424
946536626653781
1012032002131220
11391981a590735
121423a71204384
136937c77c70c6
142d84cdcb8b88
1515cea76cd79a
hexaf16b368514

12032002131220 has 12 divisors (see below), whose sum is σ = 25267204475604. Its totient is φ = 4812800852480.

The previous prime is 12032002131211. The next prime is 12032002131223. The reversal of 12032002131220 is 2213120023021.

It can be written as a sum of positive squares in 2 ways, for example, as 3203770648464 + 8828231482756 = 1789908^2 + 2971234^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12032002131223) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 300800053261 + ... + 300800053300.

It is an arithmetic number, because the mean of its divisors is an integer number (2105600372967).

Almost surely, 212032002131220 is an apocalyptic number.

12032002131220 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12032002131220 is an abundant number, since it is smaller than the sum of its proper divisors (13235202344384).

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

12032002131220 is a wasteful number, since it uses less digits than its factorization.

12032002131220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 601600106570 (or 601600106568 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12032002131220 its reverse (2213120023021), we get a palindrome (14245122154241).

The spelling of 12032002131220 in words is "twelve trillion, thirty-two billion, two million, one hundred thirty-one thousand, two hundred twenty".

Divisors: 1 2 4 5 10 20 601600106561 1203200213122 2406400426244 3008000532805 6016001065610 12032002131220