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12203131301 = 17717831253
BaseRepresentation
bin10110101110101110…
…10000000110100101
31011111110100022002222
423113113100012211
5144443000200201
65334523242125
7611255622164
oct132727200645
934443308088
1012203131301
1151a2393189
122446979345
1311c627716a
1483a9b73db
154b64e791b
hex2d75d01a5

12203131301 has 4 divisors (see below), whose sum is σ = 12920962572. Its totient is φ = 11485300032.

The previous prime is 12203131279. The next prime is 12203131393. The reversal of 12203131301 is 10313130221.

12203131301 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 6356235076 + 5846896225 = 79726^2 + 76465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12203131301 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17), and also a Moran number because the ratio is a prime number: 717831253 = 12203131301 / (1 + 2 + 2 + 0 + 3 + 1 + 3 + 1 + 3 + 0 + 1).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12203131301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12203131001) 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 3 ways as a sum of consecutive naturals, for example, 358915610 + ... + 358915643.

It is an arithmetic number, because the mean of its divisors is an integer number (3230240643).

Almost surely, 212203131301 is an apocalyptic number.

It is an amenable number.

12203131301 is a deficient number, since it is larger than the sum of its proper divisors (717831271).

12203131301 is an equidigital number, since it uses as much as digits as its factorization.

12203131301 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 717831270.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 12203131301 its reverse (10313130221), we get a palindrome (22516261522).

The spelling of 12203131301 in words is "twelve billion, two hundred three million, one hundred thirty-one thousand, three hundred one".

Divisors: 1 17 717831253 12203131301