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12311305300 = 2252719978807
BaseRepresentation
bin10110111011100111…
…11001110001010100
31011202222220002221101
423131303321301110
5200203143232200
65353345555444
7614041240240
oct133563716124
934688802841
1012311305300
115248457988
122477045b84
1312127c0348
1484b0d5420
154c0c6426a
hex2ddcf9c54

12311305300 has 72 divisors (see below), whose sum is σ = 30550794624. Its totient is φ = 4218426240.

The previous prime is 12311305291. The next prime is 12311305309. The reversal of 12311305300 is 350311321.

It is an interprime number because it is at equal distance from previous prime (12311305291) and next prime (12311305309).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311305309) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1393497 + ... + 1402303.

It is an arithmetic number, because the mean of its divisors is an integer number (424316592).

Almost surely, 212311305300 is an apocalyptic number.

12311305300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12311305300 is an abundant number, since it is smaller than the sum of its proper divisors (18239489324).

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

12311305300 is a wasteful number, since it uses less digits than its factorization.

12311305300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10825 (or 10818 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 19.

Adding to 12311305300 its reverse (350311321), we get a palindrome (12661616621).

The spelling of 12311305300 in words is "twelve billion, three hundred eleven million, three hundred five thousand, three hundred".

Divisors: 1 2 4 5 7 10 14 20 25 28 35 50 70 100 140 175 350 700 1997 3994 7988 8807 9985 13979 17614 19970 27958 35228 39940 44035 49925 55916 61649 69895 88070 99850 123298 139790 176140 199700 220175 246596 279580 308245 349475 440350 616490 698950 880700 1232980 1397900 1541225 3082450 6164900 17587579 35175158 70350316 87937895 123113053 175875790 246226106 351751580 439689475 492452212 615565265 879378950 1231130530 1758757900 2462261060 3077826325 6155652650 12311305300