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122120310203 = 172422561627
BaseRepresentation
bin111000110111011110…
…0000000110110111011
3102200012202220112021222
41301232330000312323
54000100244411303
6132033514022255
711552153336543
oct1615674006673
9380182815258
10122120310203
1147877805601
121b801a1798b
13b6925668a8
145ca6b9c323
15329b1d0938
hex1c6ef00dbb

122120310203 has 6 divisors (see below), whose sum is σ = 129726419796. Its totient is φ = 114936762272.

The previous prime is 122120310173. The next prime is 122120310223. The reversal of 122120310203 is 302013021221.

It is not a de Polignac number, because 122120310203 - 26 = 122120310139 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (122120310223) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 211280525 + ... + 211281102.

It is an arithmetic number, because the mean of its divisors is an integer number (21621069966).

Almost surely, 2122120310203 is an apocalyptic number.

122120310203 is a deficient number, since it is larger than the sum of its proper divisors (7606109593).

122120310203 is an equidigital number, since it uses as much as digits as its factorization.

122120310203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 422561661 (or 422561644 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 122120310203 its reverse (302013021221), we get a palindrome (424133331424).

The spelling of 122120310203 in words is "one hundred twenty-two billion, one hundred twenty million, three hundred ten thousand, two hundred three".

Divisors: 1 17 289 422561627 7183547659 122120310203