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123421010441 = 619199387739
BaseRepresentation
bin111001011110001110…
…1110010101000001001
3102210120102101221120212
41302330131302220021
54010231234313231
6132410540330505
711626326164531
oct1627435625011
9383512357525
10123421010441
1148384a40983
121bb05543a35
13b83bb884c1
145d8b8224c1
1533254ad42b
hex1cbc772a09

123421010441 has 4 divisors (see below), whose sum is σ = 123620398800. Its totient is φ = 123221622084.

The previous prime is 123421010393. The next prime is 123421010467. The reversal of 123421010441 is 144010124321.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 123421010441 - 214 = 123420994057 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (123421070441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 99693251 + ... + 99694488.

It is an arithmetic number, because the mean of its divisors is an integer number (30905099700).

Almost surely, 2123421010441 is an apocalyptic number.

It is an amenable number.

123421010441 is a deficient number, since it is larger than the sum of its proper divisors (199388359).

123421010441 is an equidigital number, since it uses as much as digits as its factorization.

123421010441 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 199388358.

The product of its (nonzero) digits is 768, while the sum is 23.

Adding to 123421010441 its reverse (144010124321), we get a palindrome (267431134762).

The spelling of 123421010441 in words is "one hundred twenty-three billion, four hundred twenty-one million, ten thousand, four hundred forty-one".

Divisors: 1 619 199387739 123421010441