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12231031011 = 323177261319
BaseRepresentation
bin10110110010000011…
…01011100011100011
31011120101211202022120
423121001223203203
5200022120443021
65341401235323
7612045022353
oct133101534343
934511752276
1012231031011
1152071096a1
122454192b43
1311cbc95174
1484059ab63
154b8ba92c6
hex2d906b8e3

12231031011 has 8 divisors (see below), whose sum is σ = 17017086720. Its totient is φ = 7799497992.

The previous prime is 12231031009. The next prime is 12231031027. The reversal of 12231031011 is 11013013221.

It is a happy number.

12231031011 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 12231031011 - 21 = 12231031009 is a prime.

It is not an unprimeable number, because it can be changed into a prime (12231031051) 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 7 ways as a sum of consecutive naturals, for example, 88630591 + ... + 88630728.

It is an arithmetic number, because the mean of its divisors is an integer number (2127135840).

Almost surely, 212231031011 is an apocalyptic number.

12231031011 is a deficient number, since it is larger than the sum of its proper divisors (4786055709).

12231031011 is a wasteful number, since it uses less digits than its factorization.

12231031011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 177261345.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 12231031011 its reverse (11013013221), we get a palindrome (23244044232).

The spelling of 12231031011 in words is "twelve billion, two hundred thirty-one million, thirty-one thousand, eleven".

Divisors: 1 3 23 69 177261319 531783957 4077010337 12231031011