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123031031322 = 23191099901097
BaseRepresentation
bin111001010010100111…
…0001000111000011010
3102202120020120221210210
41302211032020320122
54003431421000242
6132304125551550
711613552340263
oct1624516107032
9382506527723
10123031031322
11481a489a891
121ba16a155b6
13b7a9145124
145d51b0996a
153301128d9c
hex1ca5388e1a

123031031322 has 32 divisors (see below), whose sum is σ = 261388987200. Its totient is φ = 38495461248.

The previous prime is 123031031297. The next prime is 123031031369. The reversal of 123031031322 is 223130130321.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4938123 + ... + 4962974.

It is an arithmetic number, because the mean of its divisors is an integer number (8168405850).

Almost surely, 2123031031322 is an apocalyptic number.

123031031322 is an abundant number, since it is smaller than the sum of its proper divisors (138357955878).

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

123031031322 is a wasteful number, since it uses less digits than its factorization.

123031031322 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9901230.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123031031322 its reverse (223130130321), we get a palindrome (346161161643).

The spelling of 123031031322 in words is "one hundred twenty-three billion, thirty-one million, thirty-one thousand, three hundred twenty-two".

Divisors: 1 2 3 6 19 38 57 109 114 218 327 654 2071 4142 6213 12426 9901097 19802194 29703291 59406582 188120843 376241686 564362529 1079219573 1128725058 2158439146 3237658719 6475317438 20505171887 41010343774 61515515661 123031031322