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12330111331 = 23223308339
BaseRepresentation
bin10110111101110111…
…01001000101100011
31011211022021112222001
423132323221011203
5200223002030311
65355301024431
7614360134306
oct133673510543
934738245861
1012330111331
11525803215a
1224813b5117
131216676185
1484d7ccb3d
154c272b4c1
hex2deee9163

12330111331 has 6 divisors (see below), whose sum is σ = 12889512020. Its totient is φ = 11794019028.

The previous prime is 12330111329. The next prime is 12330111347. The reversal of 12330111331 is 13311103321.

It is not a de Polignac number, because 12330111331 - 21 = 12330111329 is a prime.

It is a super-2 number, since 2×123301113312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12330111299 and 12330111308.

It is not an unprimeable number, because it can be changed into a prime (12330111301) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 11653641 + ... + 11654698.

Almost surely, 212330111331 is an apocalyptic number.

12330111331 is a deficient number, since it is larger than the sum of its proper divisors (559400689).

12330111331 is an equidigital number, since it uses as much as digits as its factorization.

12330111331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23308385 (or 23308362 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 19.

Adding to 12330111331 its reverse (13311103321), we get a palindrome (25641214652).

The spelling of 12330111331 in words is "twelve billion, three hundred thirty million, one hundred eleven thousand, three hundred thirty-one".

Divisors: 1 23 529 23308339 536091797 12330111331