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12331123 = 72816269
BaseRepresentation
bin101111000010…
…100001110011
3212012111010021
4233002201303
511124043443
61120144311
7206545540
oct57024163
925174107
1012331123
116a62612
124168097
13272992c
1418cdbc7
1511389ed
hexbc2873

12331123 has 8 divisors (see below), whose sum is σ = 14145120. Its totient is φ = 10530240.

The previous prime is 12331097. The next prime is 12331127. The reversal of 12331123 is 32113321.

12331123 is digitally balanced in base 2 and base 8, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12331123 - 29 = 12330611 is a prime.

It is a super-2 number, since 2×123311232 = 304113188882258, which contains 22 as substring.

It is a Duffinian number.

12331123 is strictly pandigital in base 8.

It is a junction number, because it is equal to n+sod(n) for n = 12331097 and 12331106.

It is not an unprimeable number, because it can be changed into a prime (12331127) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1168 + ... + 5101.

It is an arithmetic number, because the mean of its divisors is an integer number (1768140).

Almost surely, 212331123 is an apocalyptic number.

12331123 is a deficient number, since it is larger than the sum of its proper divisors (1813997).

12331123 is an equidigital number, since it uses as much as digits as its factorization.

12331123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6557.

The product of its digits is 108, while the sum is 16.

The square root of 12331123 is about 3511.5698768500. The cubic root of 12331123 is about 231.0295558842.

Adding to 12331123 its reverse (32113321), we get a palindrome (44444444).

The spelling of 12331123 in words is "twelve million, three hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 7 281 1967 6269 43883 1761589 12331123