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12000313123 = 73434937799
BaseRepresentation
bin10110010110100011…
…00011111100100011
31010222022201001212121
423023101203330203
5144034040004443
65302440205111
7603243656431
oct131321437443
933868631777
1012000313123
1150a8955957
1223aaa69797
1311932441c6
1481ba9dd51
154a37d34ed
hex2cb463f23

12000313123 has 8 divisors (see below), whose sum is σ = 12167820000. Its totient is φ = 11832890688.

The previous prime is 12000313103. The next prime is 12000313153. The reversal of 12000313123 is 32131300021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2k-12000313123 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 12000313097 and 12000313106.

It is not an unprimeable number, because it can be changed into a prime (12000313103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 298578 + ... + 336376.

It is an arithmetic number, because the mean of its divisors is an integer number (1520977500).

Almost surely, 212000313123 is an apocalyptic number.

12000313123 is a deficient number, since it is larger than the sum of its proper divisors (167506877).

12000313123 is an equidigital number, since it uses as much as digits as its factorization.

12000313123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42221.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 12000313123 its reverse (32131300021), we get a palindrome (44131613144).

The spelling of 12000313123 in words is "twelve billion, three hundred thirteen thousand, one hundred twenty-three".

Divisors: 1 73 4349 37799 317477 2759327 164387851 12000313123