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12031013020302 = 234583131273567
BaseRepresentation
bin1010111100010011000001…
…0000011110001010001110
31120121011010222112202210000
42233010300100132022032
53034104003313122202
641330545430425130
72351132501231223
oct257046020361216
946534128482700
1012031013020302
113919362224aa1
121423835b021a6
1369369a900383
142d84387a394a
1515ce4a94d91c
hexaf13041e28e

12031013020302 has 40 divisors (see below), whose sum is σ = 26958864499776. Its totient is φ = 4010265751968.

The previous prime is 12031013020249. The next prime is 12031013020303. The reversal of 12031013020302 is 20302031013021.

12031013020302 is a `hidden beast` number, since 1 + 2 + 0 + 310 + 1 + 30 + 20 + 302 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031013020303) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 8809923 + ... + 10083489.

Almost surely, 212031013020302 is an apocalyptic number.

12031013020302 is an abundant number, since it is smaller than the sum of its proper divisors (14927851479474).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

12031013020302 is a wasteful number, since it uses less digits than its factorization.

12031013020302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1331894 (or 1331885 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12031013020302 its reverse (20302031013021), we get a palindrome (32333044033323).

The spelling of 12031013020302 in words is "twelve trillion, thirty-one billion, thirteen million, twenty thousand, three hundred two".

Divisors: 1 2 3 6 9 18 27 54 81 162 58313 116626 174939 349878 524817 1049634 1273567 1574451 2547134 3148902 3820701 4723353 7641402 9446706 11462103 22924206 34386309 68772618 103158927 206317854 74265512471 148531024942 222796537413 445593074826 668389612239 1336779224478 2005168836717 4010337673434 6015506510151 12031013020302