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12020031203201 = 72415983091689
BaseRepresentation
bin1010111011101010000110…
…1100001010011110000001
31120120002210122022122210022
42232322201230022132001
53033414010442000301
641321532012143225
72350263402305600
oct256724154123601
946502718278708
1012020031203201
11391473728629a
121421690167b15
1369263a6a1048
142d7ab60a7a37
1515ca067a1d1b
hexaeea1b0a781

12020031203201 has 12 divisors (see below), whose sum is σ = 14323521505860. Its totient is φ = 10051594035840.

The previous prime is 12020031203179. The next prime is 12020031203239. The reversal of 12020031203201 is 10230213002021.

It can be written as a sum of positive squares in 2 ways, for example, as 2645111904400 + 9374919298801 = 1626380^2 + 3061849^2 .

It is a de Polignac number, because none of the positive numbers 2k-12020031203201 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12020031203201.

It is not an unprimeable number, because it can be changed into a prime (12020031203251) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2991543836 + ... + 2991547853.

It is an arithmetic number, because the mean of its divisors is an integer number (1193626792155).

Almost surely, 212020031203201 is an apocalyptic number.

It is an amenable number.

12020031203201 is a deficient number, since it is larger than the sum of its proper divisors (2303490302659).

12020031203201 is an equidigital number, since it uses as much as digits as its factorization.

12020031203201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5983091744 (or 5983091737 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12020031203201 its reverse (10230213002021), we get a palindrome (22250244205222).

The spelling of 12020031203201 in words is "twelve trillion, twenty billion, thirty-one million, two hundred three thousand, two hundred one".

Divisors: 1 7 41 49 287 2009 5983091689 41881641823 245306759249 293171492761 1717147314743 12020031203201