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12131203300 = 2252465126083
BaseRepresentation
bin10110100110001001…
…10111100011100100
31011022102222222102221
423103010313203210
5144321042001200
65323433442124
7606423345436
oct132304674344
934272888387
1012131203300
115165825657
122426870344
1311b43b1c08
14831212656
154b003a91a
hex2d31378e4

12131203300 has 36 divisors (see below), whose sum is σ = 26331380656. Its totient is φ = 4851252000.

The previous prime is 12131203267. The next prime is 12131203303. The reversal of 12131203300 is 330213121.

12131203300 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not an unprimeable number, because it can be changed into a prime (12131203303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 452059 + ... + 478141.

Almost surely, 212131203300 is an apocalyptic number.

12131203300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12131203300 is an abundant number, since it is smaller than the sum of its proper divisors (14200177356).

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

12131203300 is a wasteful number, since it uses less digits than its factorization.

12131203300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30748 (or 30741 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12131203300 its reverse (330213121), we get a palindrome (12461416421).

The spelling of 12131203300 in words is "twelve billion, one hundred thirty-one million, two hundred three thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 4651 9302 18604 23255 26083 46510 52166 93020 104332 116275 130415 232550 260830 465100 521660 652075 1304150 2608300 121312033 242624066 485248132 606560165 1213120330 2426240660 3032800825 6065601650 12131203300