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121030013101 = 312402131321
BaseRepresentation
bin111000010110111110…
…0110111000010101101
3102120101210022200211211
41300231330313002231
53440332140404401
6131333405114421
711513144065024
oct1605574670255
9376353280754
10121030013101
1147368318218
121b558858a11
13b54a70248a
145c020678bb
153235614951
hex1c2df370ad

121030013101 has 12 divisors (see below), whose sum is σ = 125095244412. Its totient is φ = 117092952000.

The previous prime is 121030013077. The next prime is 121030013147. The reversal of 121030013101 is 101310030121.

It can be written as a sum of positive squares in 2 ways, for example, as 31817283876 + 89212729225 = 178374^2 + 298685^2 .

It is not a de Polignac number, because 121030013101 - 29 = 121030012589 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 (121030013171) 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, 3848521 + ... + 3879841.

It is an arithmetic number, because the mean of its divisors is an integer number (10424603701).

Almost surely, 2121030013101 is an apocalyptic number.

It is an amenable number.

121030013101 is a deficient number, since it is larger than the sum of its proper divisors (4065231311).

121030013101 is an equidigital number, since it uses as much as digits as its factorization.

121030013101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35404 (or 35373 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 121030013101 its reverse (101310030121), we get a palindrome (222340043222).

The spelling of 121030013101 in words is "one hundred twenty-one billion, thirty million, thirteen thousand, one hundred one".

Divisors: 1 31 961 4021 31321 124651 970951 3864181 30099481 125941741 3904193971 121030013101