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12133102231 = 13192619101
BaseRepresentation
bin10110100110011000…
…00111001010010111
31011022120120110021201
423103030013022113
5144322033232411
65323542253331
7606445444615
oct132314071227
934276513251
1012133102231
115166902318
122427427247
1311b48c8343
148315886b5
154b02b33c1
hex2d3307297

12133102231 has 4 divisors (see below), whose sum is σ = 12225721464. Its totient is φ = 12040483000.

The previous prime is 12133102193. The next prime is 12133102279. The reversal of 12133102231 is 13220133121.

12133102231 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12133102231 - 219 = 12132577943 is a prime.

It is a super-2 number, since 2×121331022312 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12133102199 and 12133102208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12133102291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46309420 + ... + 46309681.

It is an arithmetic number, because the mean of its divisors is an integer number (3056430366).

Almost surely, 212133102231 is an apocalyptic number.

12133102231 is a deficient number, since it is larger than the sum of its proper divisors (92619233).

12133102231 is an equidigital number, since it uses as much as digits as its factorization.

12133102231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92619232.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 12133102231 its reverse (13220133121), we get a palindrome (25353235352).

The spelling of 12133102231 in words is "twelve billion, one hundred thirty-three million, one hundred two thousand, two hundred thirty-one".

Divisors: 1 131 92619101 12133102231