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123230131143 = 3729202348327
BaseRepresentation
bin111001011000100010…
…1101001001111000111
3102210002010020021102020
41302301011221033013
54004333403144033
6132340001214223
711621520555240
oct1626105511707
9383063207366
10123230131143
1148297218499
121ba71631373
13b80b475782
145d70335cc7
1533138566b3
hex1cb11693c7

123230131143 has 16 divisors (see below), whose sum is σ = 194254394880. Its totient is φ = 67989037536.

The previous prime is 123230131103. The next prime is 123230131153. The reversal of 123230131143 is 341131032321.

It is not a de Polignac number, because 123230131143 - 210 = 123230130119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123230131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 101173555 + ... + 101174772.

It is an arithmetic number, because the mean of its divisors is an integer number (12140899680).

Almost surely, 2123230131143 is an apocalyptic number.

123230131143 is a deficient number, since it is larger than the sum of its proper divisors (71024263737).

123230131143 is a wasteful number, since it uses less digits than its factorization.

123230131143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 202348366.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 123230131143 its reverse (341131032321), we get a palindrome (464361163464).

The spelling of 123230131143 in words is "one hundred twenty-three billion, two hundred thirty million, one hundred thirty-one thousand, one hundred forty-three".

Divisors: 1 3 7 21 29 87 203 609 202348327 607044981 1416438289 4249314867 5868101483 17604304449 41076710381 123230131143