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12132011233 = 194115573827
BaseRepresentation
bin10110100110001111…
…11100110011100001
31011022111112000201101
423103013330303201
5144321243324413
65323503034401
7606433252066
oct132307746341
934274460641
1012132011233
115166227671
122426b9ba01
1311b4605894
14831382c6d
154b0149edd
hex2d31fcce1

12132011233 has 8 divisors (see below), whose sum is σ = 13082015520. Its totient is φ = 11213154720.

The previous prime is 12132011191. The next prime is 12132011261. The reversal of 12132011233 is 33211023121.

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 12132011233 - 233 = 3542076641 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12132011233.

It is not an unprimeable number, because it can be changed into a prime (12132011933) 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, 7786135 + ... + 7787692.

It is an arithmetic number, because the mean of its divisors is an integer number (1635251940).

Almost surely, 212132011233 is an apocalyptic number.

It is an amenable number.

12132011233 is a deficient number, since it is larger than the sum of its proper divisors (950004287).

12132011233 is a wasteful number, since it uses less digits than its factorization.

12132011233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15573887.

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

Adding to 12132011233 its reverse (33211023121), we get a palindrome (45343034354).

The spelling of 12132011233 in words is "twelve billion, one hundred thirty-two million, eleven thousand, two hundred thirty-three".

Divisors: 1 19 41 779 15573827 295902713 638526907 12132011233