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12041312401 = 29415217669
BaseRepresentation
bin10110011011011011…
…11101100010010001
31011002011212001022101
423031231331202101
5144130033444101
65310503040401
7604252316026
oct131555754221
934064761271
1012041312401
11511a009258
122400740101
13119b89a831
148232d354d
154a71d1401
hex2cdb7d891

12041312401 has 4 divisors (see below), whose sum is σ = 12456530100. Its totient is φ = 11626094704.

The previous prime is 12041312363. The next prime is 12041312417. The reversal of 12041312401 is 10421314021.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 10421314021 = 27763375367.

It can be written as a sum of positive squares in 2 ways, for example, as 8258447376 + 3782865025 = 90876^2 + 61505^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12041312401 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12041316401) 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, 207608806 + ... + 207608863.

It is an arithmetic number, because the mean of its divisors is an integer number (3114132525).

Almost surely, 212041312401 is an apocalyptic number.

It is an amenable number.

12041312401 is a deficient number, since it is larger than the sum of its proper divisors (415217699).

12041312401 is an equidigital number, since it uses as much as digits as its factorization.

12041312401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 415217698.

The product of its (nonzero) digits is 192, while the sum is 19.

Adding to 12041312401 its reverse (10421314021), we get a palindrome (22462626422).

The spelling of 12041312401 in words is "twelve billion, forty-one million, three hundred twelve thousand, four hundred one".

Divisors: 1 29 415217669 12041312401