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12003001223 = 41863286721
BaseRepresentation
bin10110010110110111…
…10100001110000111
31010222111202122020212
423023123310032013
5144040232014343
65303013550035
7603305553443
oct131333641607
933874678225
1012003001223
1150aa421524
1223ab94531b
1311939758b5
1481c19d823
154a3b64c18
hex2cb6f4387

12003001223 has 4 divisors (see below), whose sum is σ = 12003329808. Its totient is φ = 12002672640.

The previous prime is 12003001217. The next prime is 12003001229. The reversal of 12003001223 is 32210030021.

It is a happy number.

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

It is an interprime number because it is at equal distance from previous prime (12003001217) and next prime (12003001229).

It is a cyclic number.

It is not a de Polignac number, because 12003001223 - 218 = 12002739079 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12003001198 and 12003001207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12003001229) 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, 101498 + ... + 185223.

It is an arithmetic number, because the mean of its divisors is an integer number (3000832452).

Almost surely, 212003001223 is an apocalyptic number.

12003001223 is a deficient number, since it is larger than the sum of its proper divisors (328585).

12003001223 is an equidigital number, since it uses as much as digits as its factorization.

12003001223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 328584.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 12003001223 its reverse (32210030021), we get a palindrome (44213031244).

The spelling of 12003001223 in words is "twelve billion, three million, one thousand, two hundred twenty-three".

Divisors: 1 41863 286721 12003001223