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12011142041 = 23522223567
BaseRepresentation
bin10110010111110101…
…10111101110011001
31011000002002020100122
423023322313232121
5144044323021131
65303504243025
7603435010553
oct131372675631
934002066318
1012011142041
115103a81878
1223b2610475
131195566152
1481d2bc4d3
154a4721d7b
hex2cbeb7b99

12011142041 has 4 divisors (see below), whose sum is σ = 12533365632. Its totient is φ = 11488918452.

The previous prime is 12011142007. The next prime is 12011142083. The reversal of 12011142041 is 14024111021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 14024111021 = 109128661569.

It is a cyclic number.

It is not a de Polignac number, because 12011142041 - 210 = 12011141017 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12011147041) 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, 261111761 + ... + 261111806.

It is an arithmetic number, because the mean of its divisors is an integer number (3133341408).

Almost surely, 212011142041 is an apocalyptic number.

It is an amenable number.

12011142041 is a deficient number, since it is larger than the sum of its proper divisors (522223591).

12011142041 is an equidigital number, since it uses as much as digits as its factorization.

12011142041 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 522223590.

The product of its (nonzero) digits is 64, while the sum is 17.

Adding to 12011142041 its reverse (14024111021), we get a palindrome (26035253062).

The spelling of 12011142041 in words is "twelve billion, eleven million, one hundred forty-two thousand, forty-one".

Divisors: 1 23 522223567 12011142041