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13043030121 = 3211131747779
BaseRepresentation
bin11000010010110110…
…01101100001101001
31020122222202120200200
430021123031201221
5203203003430441
65554125222413
7641134632612
oct141133154151
936588676620
1013043030121
1155934a5640
122640101a09
1312cb289804
148ba36ac09
155151017b6
hex3096cd869

13043030121 has 12 divisors (see below), whose sum is σ = 20552653680. Its totient is φ = 7904866680.

The previous prime is 13043030107. The next prime is 13043030123. The reversal of 13043030121 is 12103034031.

It is not a de Polignac number, because 13043030121 - 221 = 13040932969 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13043030094 and 13043030103.

It is not an unprimeable number, because it can be changed into a prime (13043030123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 65873791 + ... + 65873988.

It is an arithmetic number, because the mean of its divisors is an integer number (1712721140).

Almost surely, 213043030121 is an apocalyptic number.

13043030121 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

13043030121 is a deficient number, since it is larger than the sum of its proper divisors (7509623559).

13043030121 is a wasteful number, since it uses less digits than its factorization.

13043030121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 131747796 (or 131747793 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 13043030121 its reverse (12103034031), we get a palindrome (25146064152).

The spelling of 13043030121 in words is "thirteen billion, forty-three million, thirty thousand, one hundred twenty-one".

Divisors: 1 3 9 11 33 99 131747779 395243337 1185730011 1449225569 4347676707 13043030121