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101201102001018 = 23213120794285019
BaseRepresentation
bin10111000000101010110111…
…101111000101001101111010
3111021022201201210122002110200
4113000222313233011031322
5101231034324103013033
6555123051111023030
730213352435534245
oct2700526757051572
9437281653562420
10101201102001018
112a278167854a08
12b42555036aa76
1344612b8b32356
141adc23383a25c
15ba77160d9013
hex5c0ab7bc537a

101201102001018 has 24 divisors (see below), whose sum is σ = 219269272622400. Its totient is φ = 33733667084424.

The previous prime is 101201102001017. The next prime is 101201102001029. The reversal of 101201102001018 is 810100201102101.

101201102001018 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (101201102001011) 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, 21474913 + ... + 25759931.

It is an arithmetic number, because the mean of its divisors is an integer number (9136219692600).

Almost surely, 2101201102001018 is an apocalyptic number.

101201102001018 is a gapful number since it is divisible by the number (18) formed by its first and last digit.

101201102001018 is an abundant number, since it is smaller than the sum of its proper divisors (118068170621382).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101201102001018 is a wasteful number, since it uses less digits than its factorization.

101201102001018 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5597106 (or 5597103 counting only the distinct ones).

The product of its (nonzero) digits is 32, while the sum is 18.

Adding to 101201102001018 its reverse (810100201102101), we get a palindrome (911301303103119).

The spelling of 101201102001018 in words is "one hundred one trillion, two hundred one billion, one hundred two million, one thousand, eighteen".

Divisors: 1 2 3 6 9 18 1312079 2624158 3936237 4285019 7872474 8570038 11808711 12855057 23617422 25710114 38565171 77130342 5622283444501 11244566889002 16866850333503 33733700667006 50600551000509 101201102001018