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12142302611 = 31391687181
BaseRepresentation
bin10110100111011110…
…01101010110010011
31011100012212212211112
423103233031112103
5144331412140421
65324511403535
7606616604105
oct132357152623
934305785745
1012142302611
11517101673a
12242a5235ab
1311b6799c5a
148328a1575
154b0ece45b
hex2d3bcd593

12142302611 has 4 divisors (see below), whose sum is σ = 12533989824. Its totient is φ = 11750615400.

The previous prime is 12142302593. The next prime is 12142302677. The reversal of 12142302611 is 11620324121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 11620324121 = 71660046303.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12142302611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12142302911) 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, 195843560 + ... + 195843621.

It is an arithmetic number, because the mean of its divisors is an integer number (3133497456).

Almost surely, 212142302611 is an apocalyptic number.

12142302611 is a deficient number, since it is larger than the sum of its proper divisors (391687213).

12142302611 is an equidigital number, since it uses as much as digits as its factorization.

12142302611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391687212.

The product of its (nonzero) digits is 576, while the sum is 23.

Adding to 12142302611 its reverse (11620324121), we get a palindrome (23762626732).

The spelling of 12142302611 in words is "twelve billion, one hundred forty-two million, three hundred two thousand, six hundred eleven".

Divisors: 1 31 391687181 12142302611