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12310133081 is a prime number
BaseRepresentation
bin10110111011011110…
…11011100101011001
31011202220200112221212
423131233123211121
5200202343224311
65353304512505
7614025255551
oct133557334531
934686615855
1012310133081
115247827204
12247677b735
13121249c91c
1484acac161
154c0ad1c8b
hex2ddbdb959

12310133081 has 2 divisors, whose sum is σ = 12310133082. Its totient is φ = 12310133080.

The previous prime is 12310133029. The next prime is 12310133123. The reversal of 12310133081 is 18033101321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 6338707456 + 5971425625 = 79616^2 + 77275^2 .

It is a cyclic number.

It is not a de Polignac number, because 12310133081 - 210 = 12310132057 is a prime.

It is a super-2 number, since 2×123101330812 (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (12310133021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6155066540 + 6155066541.

It is an arithmetic number, because the mean of its divisors is an integer number (6155066541).

Almost surely, 212310133081 is an apocalyptic number.

It is an amenable number.

12310133081 is a deficient number, since it is larger than the sum of its proper divisors (1).

12310133081 is an equidigital number, since it uses as much as digits as its factorization.

12310133081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

The spelling of 12310133081 in words is "twelve billion, three hundred ten million, one hundred thirty-three thousand, eighty-one".