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12310010131200 = 28352853751637
BaseRepresentation
bin1011001100100010010111…
…0001111111001100000000
31121120211021202211111001120
42303020211301333030000
53103141400043144300
642103050211032240
72410240345444005
oct263104561771400
947524252744046
1012310010131200
113a16711885901
12146991959b680
136b3aa1345142
14307b4435d8ac
151653292de3a0
hexb3225c7f300

12310010131200 has 216 divisors, whose sum is σ = 40673278858128. Its totient is φ = 3278816624640.

The previous prime is 12310010131163. The next prime is 12310010131201. The reversal of 12310010131200 is 213101001321.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 12310010131200.

It is not an unprimeable number, because it can be changed into a prime (12310010131201) 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, 16001782 + ... + 16753418.

Almost surely, 212310010131200 is an apocalyptic number.

12310010131200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 12310010131200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (20336639429064).

12310010131200 is an abundant number, since it is smaller than the sum of its proper divisors (28363268726928).

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

12310010131200 is an equidigital number, since it uses as much as digits as its factorization.

12310010131200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 752519 (or 752500 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12310010131200 its reverse (213101001321), we get a palindrome (12523111132521).

The spelling of 12310010131200 in words is "twelve trillion, three hundred ten billion, ten million, one hundred thirty-one thousand, two hundred".