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131223152331323 = 132910312741123169
BaseRepresentation
bin11101110101100011000101…
…011000011000101000111011
3122012121210220002220200121222
4131311203011120120220323
5114144430003444100243
61143031030045222255
736432363021033653
oct3565430530305073
9565553802820558
10131223152331323
11388a2476568538
1212873b1426198b
13582b3a0666110
14245933d509363
151028636b34168
hex7758c5618a3b

131223152331323 has 32 divisors (see below), whose sum is σ = 146386618761600. Its totient is φ = 116795189145600.

The previous prime is 131223152331277. The next prime is 131223152331329. The reversal of 131223152331323 is 323133251322131.

It is a cyclic number.

It is not a de Polignac number, because 131223152331323 - 214 = 131223152314939 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (131223152331329) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1065329483 + ... + 1065452651.

It is an arithmetic number, because the mean of its divisors is an integer number (4574581836300).

Almost surely, 2131223152331323 is an apocalyptic number.

131223152331323 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

131223152331323 is a deficient number, since it is larger than the sum of its proper divisors (15163466430277).

131223152331323 is a wasteful number, since it uses less digits than its factorization.

131223152331323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 126983.

The product of its digits is 58320, while the sum is 35.

The spelling of 131223152331323 in words is "one hundred thirty-one trillion, two hundred twenty-three billion, one hundred fifty-two million, three hundred thirty-one thousand, three hundred twenty-three".

Divisors: 1 13 29 377 1031 2741 13403 29899 35633 79489 123169 388687 1033357 1601197 2825971 3571901 36737623 46434713 81953159 126987239 337606229 1065391067 1650834107 3682629931 4388880977 9790580641 47874189103 127277548333 348072022099 4524936287287 10094088640871 131223152331323