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12303121201 = 71757588743
BaseRepresentation
bin10110111010101001…
…01011101100110001
31011202102111022110121
423131110223230301
5200144044334301
65352454330241
7613611543010
oct133524535461
934672438417
1012303121201
115243878068
122474359981
131210bb6197
14849da4a77
154c01993a1
hex2dd52bb31

12303121201 has 4 divisors (see below), whose sum is σ = 14060709952. Its totient is φ = 10545532452.

The previous prime is 12303121151. The next prime is 12303121223. The reversal of 12303121201 is 10212130321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 10212130321 = 10993689269.

It is not a de Polignac number, because 12303121201 - 219 = 12302596913 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12303121241) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 878794365 + ... + 878794378.

It is an arithmetic number, because the mean of its divisors is an integer number (3515177488).

Almost surely, 212303121201 is an apocalyptic number.

It is an amenable number.

12303121201 is a deficient number, since it is larger than the sum of its proper divisors (1757588751).

12303121201 is an equidigital number, since it uses as much as digits as its factorization.

12303121201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1757588750.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12303121201 its reverse (10212130321), we get a palindrome (22515251522).

The spelling of 12303121201 in words is "twelve billion, three hundred three million, one hundred twenty-one thousand, two hundred one".

Divisors: 1 7 1757588743 12303121201