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12333231213 = 317827329231
BaseRepresentation
bin10110111110001111…
…00010110001101101
31011211112011001122020
423133013202301231
5200224301344323
65355451540353
7614425510212
oct133707426155
934745131566
1012333231213
115259873176
12248245a6b9
1312171c9264
1484dda1b09
154c2b45ae3
hex2df1e2c6d

12333231213 has 16 divisors (see below), whose sum is σ = 17414320896. Its totient is φ = 7737297920.

The previous prime is 12333231149. The next prime is 12333231221. The reversal of 12333231213 is 31213233321.

It is a cyclic number.

It is not a de Polignac number, because 12333231213 - 26 = 12333231149 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12333231223) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 407308 + ... + 436538.

It is an arithmetic number, because the mean of its divisors is an integer number (1088395056).

Almost surely, 212333231213 is an apocalyptic number.

It is an amenable number.

12333231213 is a deficient number, since it is larger than the sum of its proper divisors (5081089683).

12333231213 is a wasteful number, since it uses less digits than its factorization.

12333231213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37524.

The product of its digits is 1944, while the sum is 24.

Adding to 12333231213 its reverse (31213233321), we get a palindrome (43546464534).

The spelling of 12333231213 in words is "twelve billion, three hundred thirty-three million, two hundred thirty-one thousand, two hundred thirteen".

Divisors: 1 3 17 51 8273 24819 29231 87693 140641 421923 496927 1490781 241828063 725484189 4111077071 12333231213