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13003102321 = 111182100211
BaseRepresentation
bin11000001110000101…
…11001100001110001
31020120012122001001021
430013002321201301
5203112243233241
65550141335441
7640141355206
oct140702714161
936505561037
1013003102321
115572a04260
12262a867581
1312c2c19ab1
148b4d35cad
155118660d1
hex3070b9871

13003102321 has 4 divisors (see below), whose sum is σ = 14185202544. Its totient is φ = 11821002100.

The previous prime is 13003102253. The next prime is 13003102337. The reversal of 13003102321 is 12320130031.

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.

It is a cyclic number.

It is not a de Polignac number, because 13003102321 - 27 = 13003102193 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13003102295 and 13003102304.

It is not an unprimeable number, because it can be changed into a prime (13003102351) 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, 591050095 + ... + 591050116.

It is an arithmetic number, because the mean of its divisors is an integer number (3546300636).

Almost surely, 213003102321 is an apocalyptic number.

13003102321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13003102321 is a deficient number, since it is larger than the sum of its proper divisors (1182100223).

13003102321 is a wasteful number, since it uses less digits than its factorization.

13003102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1182100222.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 13003102321 its reverse (12320130031), we get a palindrome (25323232352).

The spelling of 13003102321 in words is "thirteen billion, three million, one hundred two thousand, three hundred twenty-one".

Divisors: 1 11 1182100211 13003102321