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12042213143 = 17708365479
BaseRepresentation
bin10110011011100010…
…11001011100010111
31011002020112210220012
423031301121130113
5144130301310033
65310534230435
7604263060062
oct131561313427
934066483805
1012042213143
11511a573a74
122400ab541b
13119bb2480c
148234898d9
154a730d248
hex2cdc59717

12042213143 has 4 divisors (see below), whose sum is σ = 12750578640. Its totient is φ = 11333847648.

The previous prime is 12042213137. The next prime is 12042213149. The reversal of 12042213143 is 34131224021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34131224021 = 103331371107.

It is an interprime number because it is at equal distance from previous prime (12042213137) and next prime (12042213149).

It is a cyclic number.

It is not a de Polignac number, because 12042213143 - 214 = 12042196759 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12042213149) 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, 354182723 + ... + 354182756.

It is an arithmetic number, because the mean of its divisors is an integer number (3187644660).

Almost surely, 212042213143 is an apocalyptic number.

12042213143 is a deficient number, since it is larger than the sum of its proper divisors (708365497).

12042213143 is an equidigital number, since it uses as much as digits as its factorization.

12042213143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 708365496.

The product of its (nonzero) digits is 1152, while the sum is 23.

Adding to 12042213143 its reverse (34131224021), we get a palindrome (46173437164).

The spelling of 12042213143 in words is "twelve billion, forty-two million, two hundred thirteen thousand, one hundred forty-three".

Divisors: 1 17 708365479 12042213143