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12031441313 = 24149922993
BaseRepresentation
bin10110011010010000…
…10011100110100001
31011001111021112201112
423031020103212201
5144120022110223
65305511313105
7604102364243
oct131510234641
934044245645
1012031441313
115114486a31
1223b937b795
131199822858
14821c84093
154a63d1778
hex2cd2139a1

12031441313 has 4 divisors (see below), whose sum is σ = 12081364548. Its totient is φ = 11981518080.

The previous prime is 12031441309. The next prime is 12031441333. The reversal of 12031441313 is 31314413021.

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

It can be written as a sum of positive squares in 2 ways, for example, as 3529310464 + 8502130849 = 59408^2 + 92207^2 .

It is a cyclic number.

It is not a de Polignac number, because 12031441313 - 22 = 12031441309 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12031441333) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 24961256 + ... + 24961737.

It is an arithmetic number, because the mean of its divisors is an integer number (3020341137).

Almost surely, 212031441313 is an apocalyptic number.

It is an amenable number.

12031441313 is a deficient number, since it is larger than the sum of its proper divisors (49923235).

12031441313 is an equidigital number, since it uses as much as digits as its factorization.

12031441313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49923234.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 12031441313 its reverse (31314413021), we get a palindrome (43345854334).

The spelling of 12031441313 in words is "twelve billion, thirty-one million, four hundred forty-one thousand, three hundred thirteen".

Divisors: 1 241 49922993 12031441313