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120101000111 = 1921578872389
BaseRepresentation
bin110111111011010010…
…0111101001110101111
3102111000001012221121022
41233312210331032233
53431431324000421
6131101301124355
711451133441241
oct1576644751657
9374001187538
10120101000111
1146a30979a94
121b3396b96bb
13b4300bb151
145b54918091
1531cdca67ab
hex1bf693d3af

120101000111 has 24 divisors (see below), whose sum is σ = 127759419360. Its totient is φ = 112880454336.

The previous prime is 120101000101. The next prime is 120101000119. The reversal of 120101000111 is 111000101021.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2k-120101000111 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120101000119) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 50271305 + ... + 50273693.

It is an arithmetic number, because the mean of its divisors is an integer number (5323309140).

Almost surely, 2120101000111 is an apocalyptic number.

120101000111 is a deficient number, since it is larger than the sum of its proper divisors (7658419249).

120101000111 is a wasteful number, since it uses less digits than its factorization.

120101000111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3471 (or 3452 counting only the distinct ones).

The product of its (nonzero) digits is 2, while the sum is 8.

Adding to 120101000111 its reverse (111000101021), we get a palindrome (231101101132).

The spelling of 120101000111 in words is "one hundred twenty billion, one hundred one million, one hundred eleven", and thus it is an aban number.

Divisors: 1 19 157 361 887 2389 2983 16853 45391 56677 139259 320207 375073 862429 2119043 2645921 7126387 40261817 50272499 135401353 332689751 764974523 6321105269 120101000111