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12131302413 = 3231491179973
BaseRepresentation
bin10110100110001010…
…01111110000001101
31011022110012000101210
423103011033300031
5144321103134123
65323435525033
7606424240416
oct132305176015
934273160353
1012131302413
11516589306a
1224268b9779
1311b4418069
1483123a80d
154b0059e93
hex2d314fc0d

12131302413 has 16 divisors (see below), whose sum is σ = 16991625600. Its totient is φ = 7683977664.

The previous prime is 12131302411. The next prime is 12131302439. The reversal of 12131302413 is 31420313121.

12131302413 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 12131302413 - 21 = 12131302411 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12131302413.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12131302411) 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 15 ways as a sum of consecutive naturals, for example, 579706 + ... + 600267.

It is an arithmetic number, because the mean of its divisors is an integer number (1061976600).

Almost surely, 212131302413 is an apocalyptic number.

It is an amenable number.

12131302413 is a deficient number, since it is larger than the sum of its proper divisors (4860323187).

12131302413 is a wasteful number, since it uses less digits than its factorization.

12131302413 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1180148.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 12131302413 its reverse (31420313121), we get a palindrome (43551615534).

The spelling of 12131302413 in words is "twelve billion, one hundred thirty-one million, three hundred two thousand, four hundred thirteen".

Divisors: 1 3 23 69 149 447 3427 10281 1179973 3539919 27139379 81418137 175815977 527447931 4043767471 12131302413