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12313200123 = 337149437243
BaseRepresentation
bin10110111011110110…
…01000010111111011
31011210010110101011000
423131323020113323
5200204134400443
65353454340043
7614063321430
oct133573102773
934703411130
1012313200123
115249531554
1224777ba623
131213004943
1484b469b87
154c0eda8d3
hex2ddec85fb

12313200123 has 32 divisors (see below), whose sum is σ = 20987712000. Its totient is φ = 6988876128.

The previous prime is 12313200071. The next prime is 12313200131. The reversal of 12313200123 is 32100231321.

It is not a de Polignac number, because 12313200123 - 218 = 12312937979 is a prime.

It is a super-2 number, since 2×123132001232 (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 12313200096 and 12313200105.

It is not an unprimeable number, because it can be changed into a prime (12313200223) 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, 190461 + ... + 246782.

It is an arithmetic number, because the mean of its divisors is an integer number (655866000).

Almost surely, 212313200123 is an apocalyptic number.

12313200123 is a deficient number, since it is larger than the sum of its proper divisors (8674511877).

12313200123 is a wasteful number, since it uses less digits than its factorization.

12313200123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 437408 (or 437402 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 12313200123 its reverse (32100231321), we get a palindrome (44413431444).

The spelling of 12313200123 in words is "twelve billion, three hundred thirteen million, two hundred thousand, one hundred twenty-three".

Divisors: 1 3 7 9 21 27 63 149 189 447 1043 1341 3129 4023 9387 28161 437243 1311729 3060701 3935187 9182103 11805561 27546309 65149207 82638927 195447621 456044449 586342863 1368133347 1759028589 4104400041 12313200123