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121015535113 = 1117647141899
BaseRepresentation
bin111000010110100010…
…1101000011000001001
3102120100210002010210001
41300231011220120021
53440314434110423
6131332130523001
711512610035114
oct1605505503011
9376323063701
10121015535113
1147360129740
121b553a36461
13b547703615
145c0017957b
153234204cad
hex1c2d168609

121015535113 has 8 divisors (see below), whose sum is σ = 139782650400. Its totient is φ = 103542703680.

The previous prime is 121015535111. The next prime is 121015535117. The reversal of 121015535113 is 311535510121.

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 121015535113 - 21 = 121015535111 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (121015535111) 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, 323570763 + ... + 323571136.

It is an arithmetic number, because the mean of its divisors is an integer number (17472831300).

Almost surely, 2121015535113 is an apocalyptic number.

It is an amenable number.

121015535113 is a deficient number, since it is larger than the sum of its proper divisors (18767115287).

121015535113 is a wasteful number, since it uses less digits than its factorization.

121015535113 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 647141927.

The product of its (nonzero) digits is 2250, while the sum is 28.

The spelling of 121015535113 in words is "one hundred twenty-one billion, fifteen million, five hundred thirty-five thousand, one hundred thirteen".

Divisors: 1 11 17 187 647141899 7118560889 11001412283 121015535113