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12131022043 = 72375347963
BaseRepresentation
bin10110100110001000…
…01011010011011011
31011022102122202210201
423103010023103123
5144321020201133
65323425523031
7606421662130
oct132304132333
934272582721
1012131022043
115165711458
1224267a3477
1311b434a56a
148311a6587
154b0001d7d
hex2d310b4db

12131022043 has 8 divisors (see below), whose sum is σ = 14466809088. Its totient is φ = 9945930984.

The previous prime is 12131022041. The next prime is 12131022143. The reversal of 12131022043 is 34022013121.

It is a happy number.

12131022043 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 a cyclic number.

It is not a de Polignac number, because 12131022043 - 21 = 12131022041 is a prime.

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 12131022043.

It is not an unprimeable number, because it can be changed into a prime (12131022041) 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, 37673821 + ... + 37674142.

It is an arithmetic number, because the mean of its divisors is an integer number (1808351136).

Almost surely, 212131022043 is an apocalyptic number.

12131022043 is a deficient number, since it is larger than the sum of its proper divisors (2335787045).

12131022043 is an equidigital number, since it uses as much as digits as its factorization.

12131022043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 75347993.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 12131022043 its reverse (34022013121), we get a palindrome (46153035164).

The spelling of 12131022043 in words is "twelve billion, one hundred thirty-one million, twenty-two thousand, forty-three".

Divisors: 1 7 23 161 75347963 527435741 1733003149 12131022043