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12031202103 = 34543988259
BaseRepresentation
bin10110011010001110…
…11001001100110111
31011001110211101120220
423031013121030313
5144114441431403
65305502225423
7604100346654
oct131507311467
934043741526
1012031202103
115114333238
1223b9285273
13119976a9cb
14821c20c2b
154a6385953
hex2cd1d9337

12031202103 has 8 divisors (see below), whose sum is σ = 16042137600. Its totient is φ = 8020534008.

The previous prime is 12031202101. The next prime is 12031202119. The reversal of 12031202103 is 30120213021.

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

It is not a de Polignac number, because 12031202103 - 21 = 12031202101 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12031202101) 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 7 ways as a sum of consecutive naturals, for example, 92188 + ... + 180446.

It is an arithmetic number, because the mean of its divisors is an integer number (2005267200).

Almost surely, 212031202103 is an apocalyptic number.

12031202103 is a deficient number, since it is larger than the sum of its proper divisors (4010935497).

12031202103 is an equidigital number, since it uses as much as digits as its factorization.

12031202103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 133701.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 12031202103 its reverse (30120213021), we get a palindrome (42151415124).

The spelling of 12031202103 in words is "twelve billion, thirty-one million, two hundred two thousand, one hundred three".

Divisors: 1 3 45439 88259 136317 264777 4010400701 12031202103