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13323013121 = 1110111991911
BaseRepresentation
bin11000110100001110…
…10000110000000001
31021101111121012011102
430122013100300001
5204241142404441
610042010224145
7651104512565
oct143207206001
937344535142
1013323013121
115717547a50
1226b9a25055
131344299522
1490560d6a5
1552e9a969b
hex31a1d0c01

13323013121 has 8 divisors (see below), whose sum is σ = 14678100288. Its totient is φ = 11991910000.

The previous prime is 13323013103. The next prime is 13323013157. The reversal of 13323013121 is 12131032331.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-13323013121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13323013093 and 13323013102.

It is not an unprimeable number, because it can be changed into a prime (13323013421) 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, 5994845 + ... + 5997066.

It is an arithmetic number, because the mean of its divisors is an integer number (1834762536).

Almost surely, 213323013121 is an apocalyptic number.

13323013121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13323013121 is a deficient number, since it is larger than the sum of its proper divisors (1355087167).

13323013121 is a wasteful number, since it uses less digits than its factorization.

13323013121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11992023.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13323013121 its reverse (12131032331), we get a palindrome (25454045452).

The spelling of 13323013121 in words is "thirteen billion, three hundred twenty-three million, thirteen thousand, one hundred twenty-one".

Divisors: 1 11 101 1111 11991911 131911021 1211183011 13323013121