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12302102311 = 19647479069
BaseRepresentation
bin10110111010100001…
…10010111100100111
31011202100120112210221
423131100302330213
5200143314233221
65352420425211
7613600100332
oct133520627447
934670515727
1012302102311
115243241604
122473b48207
13121091a4a5
14849bbb619
154c0047541
hex2dd432f27

12302102311 has 4 divisors (see below), whose sum is σ = 12949581400. Its totient is φ = 11654623224.

The previous prime is 12302102291. The next prime is 12302102321. The reversal of 12302102311 is 11320120321.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12302102311 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 (12302102321) 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, 323739516 + ... + 323739553.

It is an arithmetic number, because the mean of its divisors is an integer number (3237395350).

Almost surely, 212302102311 is an apocalyptic number.

12302102311 is a deficient number, since it is larger than the sum of its proper divisors (647479089).

12302102311 is an equidigital number, since it uses as much as digits as its factorization.

12302102311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647479088.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12302102311 its reverse (11320120321), we get a palindrome (23622222632).

The spelling of 12302102311 in words is "twelve billion, three hundred two million, one hundred two thousand, three hundred eleven".

Divisors: 1 19 647479069 12302102311