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12031044343 = 25439472937
BaseRepresentation
bin10110011010001101…
…10010101011110111
31011001110112101011221
423031012302223313
5144114421404333
65305455011211
7604066122013
oct131506625367
934043471157
1012031044343
11511423575a
1223b9209b07
131199713c66
14821bbd543
154a6353d2d
hex2cd1b2af7

12031044343 has 4 divisors (see below), whose sum is σ = 12031542720. Its totient is φ = 12030545968.

The previous prime is 12031044331. The next prime is 12031044353. The reversal of 12031044343 is 34344013021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34344013021 = 223154009027.

It is a cyclic number.

It is not a de Polignac number, because 12031044343 - 221 = 12028947191 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 (12031044353) 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, 211030 + ... + 261907.

It is an arithmetic number, because the mean of its divisors is an integer number (3007885680).

Almost surely, 212031044343 is an apocalyptic number.

12031044343 is a deficient number, since it is larger than the sum of its proper divisors (498377).

12031044343 is an equidigital number, since it uses as much as digits as its factorization.

12031044343 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 498376.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 12031044343 its reverse (34344013021), we get a palindrome (46375057364).

The spelling of 12031044343 in words is "twelve billion, thirty-one million, forty-four thousand, three hundred forty-three".

Divisors: 1 25439 472937 12031044343