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12103133203 = 71729019029
BaseRepresentation
bin10110100010110011…
…10010100000010011
31011020111011212111201
423101121302200103
5144241400230303
65320552052031
7605632635430
oct132131624023
934214155451
1012103133203
1151509a3127
122419394017
1311ab6344a5
1482b5c6b87
154ac84381d
hex2d1672813

12103133203 has 4 divisors (see below), whose sum is σ = 13832152240. Its totient is φ = 10374114168.

The previous prime is 12103133201. The next prime is 12103133249. The reversal of 12103133203 is 30233130121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30233130121 = 31219687001.

It is a cyclic number.

It is not a de Polignac number, because 12103133203 - 21 = 12103133201 is a prime.

It is a super-2 number, since 2×121031332032 (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (12103133201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 864509508 + ... + 864509521.

It is an arithmetic number, because the mean of its divisors is an integer number (3458038060).

Almost surely, 212103133203 is an apocalyptic number.

12103133203 is a deficient number, since it is larger than the sum of its proper divisors (1729019037).

12103133203 is an equidigital number, since it uses as much as digits as its factorization.

12103133203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1729019036.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 12103133203 its reverse (30233130121), we get a palindrome (42336263324).

The spelling of 12103133203 in words is "twelve billion, one hundred three million, one hundred thirty-three thousand, two hundred three".

Divisors: 1 7 1729019029 12103133203