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12203130443 = 71743304349
BaseRepresentation
bin10110101110101110…
…01111111001001011
31011111110100020221012
423113113033321023
5144443000133233
65334523234135
7611255616530
oct132727177113
934443306835
1012203130443
1151a2392579
12244697894b
1311c627695a
1483a9b6d87
154b64e7548
hex2d75cfe4b

12203130443 has 4 divisors (see below), whose sum is σ = 13946434800. Its totient is φ = 10459826088.

The previous prime is 12203130367. The next prime is 12203130479. The reversal of 12203130443 is 34403130221.

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

It is a cyclic number.

It is not a de Polignac number, because 12203130443 - 28 = 12203130187 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12203130343) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 871652168 + ... + 871652181.

It is an arithmetic number, because the mean of its divisors is an integer number (3486608700).

Almost surely, 212203130443 is an apocalyptic number.

12203130443 is a deficient number, since it is larger than the sum of its proper divisors (1743304357).

12203130443 is an equidigital number, since it uses as much as digits as its factorization.

12203130443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1743304356.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 12203130443 its reverse (34403130221), we get a palindrome (46606260664).

The spelling of 12203130443 in words is "twelve billion, two hundred three million, one hundred thirty thousand, four hundred forty-three".

Divisors: 1 7 1743304349 12203130443