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12311341311 = 340942123833
BaseRepresentation
bin10110111011101000…
…00010100011111111
31011202222221221100010
423131310002203333
5200203200410221
65353350434303
7614041450233
oct133564024377
934688857303
1012311341311
115248481a45
122477062993
131212803859
1484b1045c3
154c0c6ec76
hex2ddd028ff

12311341311 has 16 divisors (see below), whose sum is σ = 16495034720. Its totient is φ = 8167703040.

The previous prime is 12311341267. The next prime is 12311341331. The reversal of 12311341311 is 11314311321.

It is not a de Polignac number, because 12311341311 - 225 = 12277786879 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 (12311341331) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 504651 + ... + 528483.

It is an arithmetic number, because the mean of its divisors is an integer number (1030939670).

Almost surely, 212311341311 is an apocalyptic number.

12311341311 is a deficient number, since it is larger than the sum of its proper divisors (4183693409).

12311341311 is a wasteful number, since it uses less digits than its factorization.

12311341311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24666.

The product of its digits is 216, while the sum is 21.

Adding to 12311341311 its reverse (11314311321), we get a palindrome (23625652632).

The spelling of 12311341311 in words is "twelve billion, three hundred eleven million, three hundred forty-one thousand, three hundred eleven".

Divisors: 1 3 409 421 1227 1263 23833 71499 172189 516567 9747697 10033693 29243091 30101079 4103780437 12311341311