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131123302323 = 3137942558683
BaseRepresentation
bin111101000011110001…
…1101100111110110011
3110112110012121220201120
41322013203230332303
54122020031133243
6140123123233323
712321233452146
oct1720743547663
9415405556646
10131123302323
115067775a862
12214b4b18843
13c498823a70
1464bc75205d
15362679dc83
hex1e878ecfb3

131123302323 has 16 divisors (see below), whose sum is σ = 190662904320. Its totient is φ = 79669852704.

The previous prime is 131123302319. The next prime is 131123302337. The reversal of 131123302323 is 323203321131.

It is not a de Polignac number, because 131123302323 - 22 = 131123302319 is a prime.

It is a super-3 number, since 3×1311233023233 (a number of 34 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 131123302293 and 131123302302.

It is not an unprimeable number, because it can be changed into a prime (131123302223) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 21276261 + ... + 21282422.

It is an arithmetic number, because the mean of its divisors is an integer number (11916431520).

Almost surely, 2131123302323 is an apocalyptic number.

131123302323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131123302323 is a deficient number, since it is larger than the sum of its proper divisors (59539601997).

131123302323 is a wasteful number, since it uses less digits than its factorization.

131123302323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 42558778.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 131123302323 its reverse (323203321131), we get a palindrome (454326623454).

The spelling of 131123302323 in words is "one hundred thirty-one billion, one hundred twenty-three million, three hundred two thousand, three hundred twenty-three".

Divisors: 1 3 13 39 79 237 1027 3081 42558683 127676049 553262879 1659788637 3362135957 10086407871 43707767441 131123302323