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12321230233 = 131755752173
BaseRepresentation
bin10110111100110011…
…10000110110011001
31011210200120100101111
423132121300312121
5200213213331413
65354342420321
7614221505014
oct133631606631
934720510344
1012321230233
115253016704
12247a4316a1
1312148869a0
1484c55a37b
154c1a74d3d
hex2de670d99

12321230233 has 8 divisors (see below), whose sum is σ = 14049547848. Its totient is φ = 10704417024.

The previous prime is 12321230189. The next prime is 12321230239. The reversal of 12321230233 is 33203212321.

It can be written as a sum of positive squares in 4 ways, for example, as 724524889 + 11596705344 = 26917^2 + 107688^2 .

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

It is a cyclic number.

It is not a de Polignac number, because 12321230233 - 29 = 12321229721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12321230239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27875866 + ... + 27876307.

It is an arithmetic number, because the mean of its divisors is an integer number (1756193481).

Almost surely, 212321230233 is an apocalyptic number.

12321230233 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

12321230233 is a deficient number, since it is larger than the sum of its proper divisors (1728317615).

12321230233 is a wasteful number, since it uses less digits than its factorization.

12321230233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55752203.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 12321230233 its reverse (33203212321), we get a palindrome (45524442554).

The spelling of 12321230233 in words is "twelve billion, three hundred twenty-one million, two hundred thirty thousand, two hundred thirty-three".

Divisors: 1 13 17 221 55752173 724778249 947786941 12321230233