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123212123113 = 238364542757
BaseRepresentation
bin111001011000000000…
…0111100101111101001
3102210000212100101001011
41302300000330233221
54004314300414423
6132334115223521
711621211523552
oct1626000745751
9383025311034
10123212123113
1148288038822
121ba675a7ba1
13b80780bc31
145d6bba9329
153311e9ab0d
hex1cb003cbe9

123212123113 has 8 divisors (see below), whose sum is σ = 130118200128. Its totient is φ = 116435131824.

The previous prime is 123212123093. The next prime is 123212123137. The reversal of 123212123113 is 311321212321.

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

It is a cyclic number.

It is not a de Polignac number, because 123212123113 - 29 = 123212122601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123212123183) 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, 32269470 + ... + 32273287.

It is an arithmetic number, because the mean of its divisors is an integer number (16264775016).

Almost surely, 2123212123113 is an apocalyptic number.

It is an amenable number.

123212123113 is a deficient number, since it is larger than the sum of its proper divisors (6906077015).

123212123113 is an equidigital number, since it uses as much as digits as its factorization.

123212123113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 64542863.

The product of its digits is 432, while the sum is 22.

Adding to 123212123113 its reverse (311321212321), we get a palindrome (434533335434).

The spelling of 123212123113 in words is "one hundred twenty-three billion, two hundred twelve million, one hundred twenty-three thousand, one hundred thirteen".

Divisors: 1 23 83 1909 64542757 1484483411 5357048831 123212123113