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12031203130 = 251203120313
BaseRepresentation
bin10110011010001110…
…11001011100111010
31011001110211102222221
423031013121130322
5144114442000010
65305502234254
7604100352652
oct131507313472
934043742887
1012031203130
115114333a91
1223b928598a
13119976b30b
14821c21362
154a6385dda
hex2cd1d973a

12031203130 has 8 divisors (see below), whose sum is σ = 21656165652. Its totient is φ = 4812481248.

The previous prime is 12031203097. The next prime is 12031203167. The reversal of 12031203130 is 3130213021.

It can be written as a sum of positive squares in 2 ways, for example, as 11670696961 + 360506169 = 108031^2 + 18987^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 601560147 + ... + 601560166.

Almost surely, 212031203130 is an apocalyptic number.

12031203130 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

12031203130 is a deficient number, since it is larger than the sum of its proper divisors (9624962522).

12031203130 is a wasteful number, since it uses less digits than its factorization.

12031203130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1203120320.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12031203130 its reverse (3130213021), we get a palindrome (15161416151).

The spelling of 12031203130 in words is "twelve billion, thirty-one million, two hundred three thousand, one hundred thirty".

Divisors: 1 2 5 10 1203120313 2406240626 6015601565 12031203130