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123023130443 = 326099377257
BaseRepresentation
bin111001010010010111…
…1111111111101001011
3102202112200201112211122
41302210233333331023
54003422410133233
6132303244345455
711613425232533
oct1624457777513
9382480645748
10123023130443
11481a0393834
121ba1424528b
13b7a7609b55
145d50a504c3
1533005b7d98
hex1ca4bfff4b

123023130443 has 4 divisors (see below), whose sum is σ = 123023833800. Its totient is φ = 123022427088.

The previous prime is 123023130431. The next prime is 123023130463. The reversal of 123023130443 is 344031320321.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 123023130443 - 26 = 123023130379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123023130403) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 137471 + ... + 514727.

It is an arithmetic number, because the mean of its divisors is an integer number (30755958450).

Almost surely, 2123023130443 is an apocalyptic number.

123023130443 is a deficient number, since it is larger than the sum of its proper divisors (703357).

123023130443 is an equidigital number, since it uses as much as digits as its factorization.

123023130443 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 703356.

The product of its (nonzero) digits is 5184, while the sum is 26.

Adding to 123023130443 its reverse (344031320321), we get a palindrome (467054450764).

The spelling of 123023130443 in words is "one hundred twenty-three billion, twenty-three million, one hundred thirty thousand, four hundred forty-three".

Divisors: 1 326099 377257 123023130443