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12102010103 = 69491741547
BaseRepresentation
bin10110100010101011…
…00000010011110111
31011020102001210220102
423101111200103313
5144241103310403
65320512024315
7605620250201
oct132125402367
934212053812
1012102010103
1151502a6347
122418b3209b
1311ab330231
1482b3b3771
154ac6c0b88
hex2d15604f7

12102010103 has 4 divisors (see below), whose sum is σ = 12103758600. Its totient is φ = 12100261608.

The previous prime is 12102010087. The next prime is 12102010147. The reversal of 12102010103 is 30101020121.

12102010103 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 12102010103 - 24 = 12102010087 is a prime.

It is a super-2 number, since 2×121020101032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12102010163) 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, 863825 + ... + 877722.

It is an arithmetic number, because the mean of its divisors is an integer number (3025939650).

Almost surely, 212102010103 is an apocalyptic number.

12102010103 is a deficient number, since it is larger than the sum of its proper divisors (1748497).

12102010103 is an equidigital number, since it uses as much as digits as its factorization.

12102010103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1748496.

The product of its (nonzero) digits is 12, while the sum is 11.

Adding to 12102010103 its reverse (30101020121), we get a palindrome (42203030224).

The spelling of 12102010103 in words is "twelve billion, one hundred two million, ten thousand, one hundred three".

Divisors: 1 6949 1741547 12102010103