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12131141144 = 231516392643
BaseRepresentation
bin10110100110001001…
…01000011000011000
31011022102212211011212
423103010220120120
5144321033004034
65323432242252
7606422666303
oct132304503030
934272784155
1012131141144
115165792991
122426840388
1311b438c835
148311d7b3a
154b00272ce
hex2d3128618

12131141144 has 8 divisors (see below), whose sum is σ = 22745889660. Its totient is φ = 6065570568.

The previous prime is 12131141117. The next prime is 12131141149. The reversal of 12131141144 is 44114113121.

It is a tau number, because it is divible by the number of its divisors (8).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131141149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 758196314 + ... + 758196329.

Almost surely, 212131141144 is an apocalyptic number.

It is an amenable number.

12131141144 is a deficient number, since it is larger than the sum of its proper divisors (10614748516).

12131141144 is a wasteful number, since it uses less digits than its factorization.

12131141144 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1516392649 (or 1516392645 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

Adding to 12131141144 its reverse (44114113121), we get a palindrome (56245254265).

The spelling of 12131141144 in words is "twelve billion, one hundred thirty-one million, one hundred forty-one thousand, one hundred forty-four".

Divisors: 1 2 4 8 1516392643 3032785286 6065570572 12131141144