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120011020121 = 7316763115601
BaseRepresentation
bin110111111000100110…
…1101101011101011001
3102110202202220111021002
41233301031231131121
53431240310120441
6131044324354345
711445661561016
oct1576115553531
9373682814232
10120011020121
1146995101763
121b3135459b5
13b417575355
145b469b470d
1531c5e30b9b
hex1bf136d759

120011020121 has 16 divisors (see below), whose sum is σ = 122585288448. Its totient is φ = 117464256000.

The previous prime is 120011020111. The next prime is 120011020127. The reversal of 120011020121 is 121020110021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-120011020121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120011020127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7684721 + ... + 7700321.

It is an arithmetic number, because the mean of its divisors is an integer number (7661580528).

Almost surely, 2120011020121 is an apocalyptic number.

It is an amenable number.

120011020121 is a deficient number, since it is larger than the sum of its proper divisors (2574268327).

120011020121 is a wasteful number, since it uses less digits than its factorization.

120011020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16472.

The product of its (nonzero) digits is 8, while the sum is 11.

Adding to 120011020121 its reverse (121020110021), we get a palindrome (241031130142).

The spelling of 120011020121 in words is "one hundred twenty billion, eleven million, twenty thousand, one hundred twenty-one".

Divisors: 1 73 167 631 12191 15601 46063 105377 1138873 2605367 7692521 9844231 190191791 718628863 1643986577 120011020121