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12103403303 = 34807347729
BaseRepresentation
bin10110100010110101…
…10100011100100111
31011020111200121000102
423101122310130213
5144241432401203
65321001534315
7605635142045
oct132132643447
934214617012
1012103403303
115151068052
1224194a439b
1311ab6ca404
1482b657395
154ac898888
hex2d16b4727

12103403303 has 4 divisors (see below), whose sum is σ = 12103785840. Its totient is φ = 12103020768.

The previous prime is 12103403297. The next prime is 12103403309. The reversal of 12103403303 is 30330430121.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 30330430121 = 157193187453.

It is an interprime number because it is at equal distance from previous prime (12103403297) and next prime (12103403309).

It is a cyclic number.

It is not a de Polignac number, because 12103403303 - 210 = 12103402279 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 (12103403309) 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, 139058 + ... + 208671.

It is an arithmetic number, because the mean of its divisors is an integer number (3025946460).

Almost surely, 212103403303 is an apocalyptic number.

12103403303 is a deficient number, since it is larger than the sum of its proper divisors (382537).

12103403303 is an equidigital number, since it uses as much as digits as its factorization.

12103403303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382536.

The product of its (nonzero) digits is 648, while the sum is 20.

Adding to 12103403303 its reverse (30330430121), we get a palindrome (42433833424).

The spelling of 12103403303 in words is "twelve billion, one hundred three million, four hundred three thousand, three hundred three".

Divisors: 1 34807 347729 12103403303