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13201222321 = 710318309601
BaseRepresentation
bin11000100101101101…
…01010101010110001
31021002000102120121001
430102312222222301
5204014003103241
610021540002001
7645065352430
oct142266525261
937060376531
1013201222321
1156648227a1
122685090301
131324c96471
148d3389117
15523e4d431
hex312daaab1

13201222321 has 8 divisors (see below), whose sum is σ = 15233588864. Its totient is φ = 11205475200.

The previous prime is 13201222297. The next prime is 13201222367. The reversal of 13201222321 is 12322210231.

13201222321 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 13201222321 - 213 = 13201214129 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (13201222421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 9154080 + ... + 9155521.

It is an arithmetic number, because the mean of its divisors is an integer number (1904198608).

Almost surely, 213201222321 is an apocalyptic number.

It is an amenable number.

13201222321 is a deficient number, since it is larger than the sum of its proper divisors (2032366543).

13201222321 is a wasteful number, since it uses less digits than its factorization.

13201222321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18309711.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 13201222321 its reverse (12322210231), we get a palindrome (25523432552).

The spelling of 13201222321 in words is "thirteen billion, two hundred one million, two hundred twenty-two thousand, three hundred twenty-one".

Divisors: 1 7 103 721 18309601 128167207 1885888903 13201222321