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12331223132 = 2210728811269
BaseRepresentation
bin10110111101111111…
…11000100001011100
31011211101101001001212
423132333320201130
5200223243120012
65355340523552
7614402444564
oct133677704134
934741331055
1012331223132
1152587214a8
1224818505b8
131216975247
1484d9dbda4
154c289ab22
hex2deff885c

12331223132 has 12 divisors (see below), whose sum is σ = 21781320120. Its totient is φ = 6107988816.

The previous prime is 12331223123. The next prime is 12331223143. The reversal of 12331223132 is 23132213321.

It is a junction number, because it is equal to n+sod(n) for n = 12331223098 and 12331223107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14405207 + ... + 14406062.

It is an arithmetic number, because the mean of its divisors is an integer number (1815110010).

Almost surely, 212331223132 is an apocalyptic number.

It is an amenable number.

12331223132 is a deficient number, since it is larger than the sum of its proper divisors (9450096988).

12331223132 is a wasteful number, since it uses less digits than its factorization.

12331223132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28811380 (or 28811378 counting only the distinct ones).

The product of its digits is 1296, while the sum is 23.

Adding to 12331223132 its reverse (23132213321), we get a palindrome (35463436453).

The spelling of 12331223132 in words is "twelve billion, three hundred thirty-one million, two hundred twenty-three thousand, one hundred thirty-two".

Divisors: 1 2 4 107 214 428 28811269 57622538 115245076 3082805783 6165611566 12331223132