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12311302330 = 257915583927
BaseRepresentation
bin10110111011100111…
…11001000010111010
31011202222212221212101
423131303321002322
5200203143133310
65353345534014
7614041225465
oct133563710272
934688787771
1012311302330
115248455728
12247704430a
1312127bbba2
1484b0d42dc
154c0c6343a
hex2ddcf90ba

12311302330 has 16 divisors (see below), whose sum is σ = 22440856320. Its totient is φ = 4862184912.

The previous prime is 12311302309. The next prime is 12311302363. The reversal of 12311302330 is 3320311321.

It is a junction number, because it is equal to n+sod(n) for n = 12311302298 and 12311302307.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 7791174 + ... + 7792753.

It is an arithmetic number, because the mean of its divisors is an integer number (1402553520).

Almost surely, 212311302330 is an apocalyptic number.

12311302330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12311302330 is a deficient number, since it is larger than the sum of its proper divisors (10129553990).

12311302330 is a wasteful number, since it uses less digits than its factorization.

12311302330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15584013.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12311302330 its reverse (3320311321), we get a palindrome (15631613651).

The spelling of 12311302330 in words is "twelve billion, three hundred eleven million, three hundred two thousand, three hundred thirty".

Divisors: 1 2 5 10 79 158 395 790 15583927 31167854 77919635 155839270 1231130233 2462260466 6155651165 12311302330