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12103322021 = 72166179823
BaseRepresentation
bin10110100010110101…
…00000100110100101
31011020111112110111222
423101122200212211
5144241422301041
65321000110125
7605634353060
oct132132404645
934214473458
1012103322021
115151011a7a
122419465345
1311ab69c40b
1482b6358d7
154ac87e74b
hex2d16a09a5

12103322021 has 8 divisors (see below), whose sum is σ = 13833179904. Its totient is φ = 10373667120.

The previous prime is 12103322017. The next prime is 12103322071. The reversal of 12103322021 is 12022330121.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 12103322021 - 22 = 12103322017 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 (12103322071) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111716 + ... + 191538.

It is an arithmetic number, because the mean of its divisors is an integer number (1729147488).

Almost surely, 212103322021 is an apocalyptic number.

It is an amenable number.

12103322021 is a deficient number, since it is larger than the sum of its proper divisors (1729857883).

12103322021 is an equidigital number, since it uses as much as digits as its factorization.

12103322021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 101491.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 12103322021 its reverse (12022330121), we get a palindrome (24125652142).

The spelling of 12103322021 in words is "twelve billion, one hundred three million, three hundred twenty-two thousand, twenty-one".

Divisors: 1 7 21661 79823 151627 558761 1729046003 12103322021