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12120102103 = 23526960961
BaseRepresentation
bin10110100100110101…
…00001010011010111
31011021200002222110111
423102122201103113
5144310221231403
65322355503451
7606230111434
oct132232412327
934250088414
1012120102103
11515a53310a
122422bb7b87
1311b1cc6065
1482d962b8b
154ae09656d
hex2d26a14d7

12120102103 has 4 divisors (see below), whose sum is σ = 12647063088. Its totient is φ = 11593141120.

The previous prime is 12120102101. The next prime is 12120102131. The reversal of 12120102103 is 30120102121.

12120102103 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 12120102103 - 21 = 12120102101 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12120102101) 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 3 ways as a sum of consecutive naturals, for example, 263480458 + ... + 263480503.

It is an arithmetic number, because the mean of its divisors is an integer number (3161765772).

Almost surely, 212120102103 is an apocalyptic number.

12120102103 is a deficient number, since it is larger than the sum of its proper divisors (526960985).

12120102103 is an equidigital number, since it uses as much as digits as its factorization.

12120102103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 526960984.

The product of its (nonzero) digits is 24, while the sum is 13.

Adding to 12120102103 its reverse (30120102121), we get a palindrome (42240204224).

The spelling of 12120102103 in words is "twelve billion, one hundred twenty million, one hundred two thousand, one hundred three".

Divisors: 1 23 526960961 12120102103