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12121032329 = 713211310807
BaseRepresentation
bin10110100100111100…
…00100011010001001
31011021201212020111022
423102132010122021
5144310441013304
65322431442225
7606241034450
oct132236043211
934251766438
1012121032329
115160008a9a
122423386375
1311b22605a3
1482db25b97
154ae1cbebe
hex2d2784689

12121032329 has 8 divisors (see below), whose sum is σ = 13863105408. Its totient is φ = 10381583520.

The previous prime is 12121032293. The next prime is 12121032337. The reversal of 12121032329 is 92323012121.

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

It is not a de Polignac number, because 12121032329 - 212 = 12121028233 is a prime.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 12121032298 and 12121032307.

It is not an unprimeable number, because it can be changed into a prime (12121032379) 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, 646157 + ... + 664650.

It is an arithmetic number, because the mean of its divisors is an integer number (1732888176).

Almost surely, 212121032329 is an apocalyptic number.

It is an amenable number.

12121032329 is a deficient number, since it is larger than the sum of its proper divisors (1742073079).

12121032329 is a wasteful number, since it uses less digits than its factorization.

12121032329 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1312135.

The product of its (nonzero) digits is 1296, while the sum is 26.

The spelling of 12121032329 in words is "twelve billion, one hundred twenty-one million, thirty-two thousand, three hundred twenty-nine".

Divisors: 1 7 1321 9247 1310807 9175649 1731576047 12121032329