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12103321433 = 71729045919
BaseRepresentation
bin10110100010110101…
…00000011101011001
31011020111112102201012
423101122200131121
5144241422241213
65321000103305
7605634351260
oct132132403531
934214472635
1012103321433
115151011595
122419464b35
1311ab69c078
1482b6355d7
154ac87e4a8
hex2d16a0759

12103321433 has 4 divisors (see below), whose sum is σ = 13832367360. Its totient is φ = 10374275508.

The previous prime is 12103321421. The next prime is 12103321453. The reversal of 12103321433 is 33412330121.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 33412330121 = 41814934881.

It is a cyclic number.

It is not a de Polignac number, because 12103321433 - 26 = 12103321369 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 12103321399 and 12103321408.

It is not an unprimeable number, because it can be changed into a prime (12103321403) 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, 864522953 + ... + 864522966.

It is an arithmetic number, because the mean of its divisors is an integer number (3458091840).

Almost surely, 212103321433 is an apocalyptic number.

It is an amenable number.

12103321433 is a deficient number, since it is larger than the sum of its proper divisors (1729045927).

12103321433 is an equidigital number, since it uses as much as digits as its factorization.

12103321433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1729045926.

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 12103321433 its reverse (33412330121), we get a palindrome (45515651554).

The spelling of 12103321433 in words is "twelve billion, one hundred three million, three hundred twenty-one thousand, four hundred thirty-three".

Divisors: 1 7 1729045919 12103321433