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12353612231 is a prime number
BaseRepresentation
bin10111000000101010…
…10010100111000111
31011212221111112010202
423200111102213013
5200300011042411
65401500441115
7615063654122
oct134025224707
934787445122
1012353612231
11526a323794
12248924919b
13121b4b3c2c
148529893b9
154c481e83b
hex2e05529c7

12353612231 has 2 divisors, whose sum is σ = 12353612232. Its totient is φ = 12353612230.

The previous prime is 12353612197. The next prime is 12353612233. The reversal of 12353612231 is 13221635321.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 12353612231 - 214 = 12353595847 is a prime.

It is a super-2 number, since 2×123536122312 (a number of 21 digits) contains 22 as substring.

It is a Sophie Germain prime.

Together with 12353612233, it forms a pair of twin primes.

It is a Chen prime.

It is a junction number, because it is equal to n+sod(n) for n = 12353612194 and 12353612203.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12353612233) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6176806115 + 6176806116.

It is an arithmetic number, because the mean of its divisors is an integer number (6176806116).

Almost surely, 212353612231 is an apocalyptic number.

12353612231 is a deficient number, since it is larger than the sum of its proper divisors (1).

12353612231 is an equidigital number, since it uses as much as digits as its factorization.

12353612231 is an evil number, because the sum of its binary digits is even.

The product of its digits is 6480, while the sum is 29.

The spelling of 12353612231 in words is "twelve billion, three hundred fifty-three million, six hundred twelve thousand, two hundred thirty-one".