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123113101321 = 788719828169
BaseRepresentation
bin111001010101000011…
…1001101100000001001
3102202202222000112200101
41302222013031200021
54004113423220241
6132320221005401
711615600044360
oct1625207154011
9382688015611
10123113101321
1148237155231
121ba3a3b3861
13b7c014b762
145d5c9907d7
15330843ae31
hex1caa1cd809

123113101321 has 8 divisors (see below), whose sum is σ = 140859319680. Its totient is φ = 105406541088.

The previous prime is 123113101313. The next prime is 123113101333. The reversal of 123113101321 is 123101311321.

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 123113101321 - 23 = 123113101313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123113101421) 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, 9907876 + ... + 9920293.

It is an arithmetic number, because the mean of its divisors is an integer number (17607414960).

Almost surely, 2123113101321 is an apocalyptic number.

It is an amenable number.

123113101321 is a deficient number, since it is larger than the sum of its proper divisors (17746218359).

123113101321 is an equidigital number, since it uses as much as digits as its factorization.

123113101321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19829063.

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 123113101321 its reverse (123101311321), we get a palindrome (246214412642).

The spelling of 123113101321 in words is "one hundred twenty-three billion, one hundred thirteen million, one hundred one thousand, three hundred twenty-one".

Divisors: 1 7 887 6209 19828169 138797183 17587585903 123113101321