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321213231041 = 1999160686959
BaseRepresentation
bin1001010110010011100…
…11001110111111000001
31010201002220100211002212
410223021303032333001
520230321041343131
6403321402151505
732130651262103
oct4531163167701
91121086324085
10321213231041
111142535497aa
12523057b2595
13243a0981121
14117925dd573
15854ebcaa2b
hex4ac9ccefc1

321213231041 has 4 divisors (see below), whose sum is σ = 321373920000. Its totient is φ = 321052542084.

The previous prime is 321213231023. The next prime is 321213231047. The reversal of 321213231041 is 140132312123.

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, and also an emirpimes, since its reverse is a distinct semiprime: 140132312123 = 443316325761.

It is a cyclic number.

It is not a de Polignac number, because 321213231041 - 210 = 321213230017 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321213230998 and 321213231016.

It is not an unprimeable number, because it can be changed into a prime (321213231047) 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, 80341481 + ... + 80345478.

It is an arithmetic number, because the mean of its divisors is an integer number (80343480000).

Almost surely, 2321213231041 is an apocalyptic number.

It is an amenable number.

321213231041 is a deficient number, since it is larger than the sum of its proper divisors (160688959).

321213231041 is a wasteful number, since it uses less digits than its factorization.

321213231041 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160688958.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 321213231041 its reverse (140132312123), we get a palindrome (461345543164).

The spelling of 321213231041 in words is "three hundred twenty-one billion, two hundred thirteen million, two hundred thirty-one thousand, forty-one".

Divisors: 1 1999 160686959 321213231041