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120112100103 = 31811189718593
BaseRepresentation
bin110111111011100111…
…1010011001100000111
3102111000211002212221010
41233313033103030013
53431442144200403
6131102335053303
711451330001602
oct1576717231407
9374024085833
10120112100103
1146a37170636
121b341371233
13b4324a65a8
145b561a7339
1531cec4a603
hex1bf73d3307

120112100103 has 16 divisors (see below), whose sum is σ = 161056467936. Its totient is φ = 79621355520.

The previous prime is 120112100099. The next prime is 120112100111. The reversal of 120112100103 is 301001211021.

It is not a de Polignac number, because 120112100103 - 22 = 120112100099 is a prime.

It is a super-2 number, since 2×1201121001032 (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120112100123) 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, 6450775 + ... + 6469367.

It is an arithmetic number, because the mean of its divisors is an integer number (10066029246).

Almost surely, 2120112100103 is an apocalyptic number.

120112100103 is a deficient number, since it is larger than the sum of its proper divisors (40944367833).

120112100103 is a wasteful number, since it uses less digits than its factorization.

120112100103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30674.

The product of its (nonzero) digits is 12, while the sum is 12.

Adding to 120112100103 its reverse (301001211021), we get a palindrome (421113311124).

The spelling of 120112100103 in words is "one hundred twenty billion, one hundred twelve million, one hundred thousand, one hundred three".

Divisors: 1 3 181 543 11897 18593 35691 55779 2153357 3365333 6460071 10095999 221200921 663602763 40037366701 120112100103