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12102311203 = 1712731317909
BaseRepresentation
bin10110100010101101…
…01001110100100011
31011020102122002221021
423101112221310203
5144241142424303
65320522310311
7605622643063
oct132126516443
934212562837
1012102311203
115150491594
122419058397
1311ab4072b8
1482b4513a3
154ac72eebd
hex2d15a9d23

12102311203 has 16 divisors (see below), whose sum is σ = 12957096960. Its totient is φ = 11263988736.

The previous prime is 12102311191. The next prime is 12102311213. The reversal of 12102311203 is 30211320121.

12102311203 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 12102311203 - 221 = 12100214051 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12102311213) 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, 666813 + ... + 684721.

It is an arithmetic number, because the mean of its divisors is an integer number (809818560).

Almost surely, 212102311203 is an apocalyptic number.

12102311203 is a deficient number, since it is larger than the sum of its proper divisors (854785757).

12102311203 is a wasteful number, since it uses less digits than its factorization.

12102311203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18366.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 12102311203 its reverse (30211320121), we get a palindrome (42313631324).

The spelling of 12102311203 in words is "twelve billion, one hundred two million, three hundred eleven thousand, two hundred three".

Divisors: 1 17 127 313 2159 5321 17909 39751 304453 675767 2274443 5605517 38665531 95293789 711900659 12102311203