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12321231310213 = 731397929153953
BaseRepresentation
bin1011001101001100001010…
…0111011000110110000101
31121121220020210110102212021
42303103002213120312011
53103332340203411323
642112143455523141
72411115412053430
oct263230247306605
947556223412767
1012321231310213
113a2044a951771
12146bb2b5294b1
136b4b6c030a37
143084ca766817
151657844bd05d
hexb34c29d8d85

12321231310213 has 32 divisors (see below), whose sum is σ = 14588040591360. Its totient is φ = 10183592263680.

The previous prime is 12321231310183. The next prime is 12321231310229. The reversal of 12321231310213 is 31201313212321.

It is a cyclic number.

It is not a de Polignac number, because 12321231310213 - 29 = 12321231309701 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12321231310813) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 79955445 + ... + 80109397.

It is an arithmetic number, because the mean of its divisors is an integer number (455876268480).

Almost surely, 212321231310213 is an apocalyptic number.

It is an amenable number.

12321231310213 is a deficient number, since it is larger than the sum of its proper divisors (2266809281147).

12321231310213 is a wasteful number, since it uses less digits than its factorization.

12321231310213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 155317.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 12321231310213 its reverse (31201313212321), we get a palindrome (43522544522534).

The spelling of 12321231310213 in words is "twelve trillion, three hundred twenty-one billion, two hundred thirty-one million, three hundred ten thousand, two hundred thirteen".

Divisors: 1 7 31 217 397 929 2779 6503 12307 28799 86149 153953 201593 368813 1077671 2581691 4772543 11433203 33407801 61119341 80032421 143022337 427835387 1001156359 1894699571 4433692447 13262896997 31035847129 56779867789 397459074523 1760175901459 12321231310213