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321131343131123 = 7283101781784669
BaseRepresentation
bin100100100000100010011011…
…1101000100011000111110011
31120010000212010110002220010212
41021001010313220203013303
5314042403442320143443
63054553411420014335
7124432655022454400
oct11101046750430763
91503025113086125
10321131343131123
11933600463588a8
12300254a50913ab
1310a2572bbb5945
145942ba8b132a7
15271d56ab7e618
hex1241137a231f3

321131343131123 has 24 divisors (see below), whose sum is σ = 381804869995920. Its totient is φ = 269246639659200.

The previous prime is 321131343131119. The next prime is 321131343131171.

321131343131123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321131343131123 - 22 = 321131343131119 is a prime.

It is a super-2 number, since 2×3211313431311232 (a number of 30 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 321131343131123.

It is not an unprimeable number, because it can be changed into a prime (321131343151123) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 390481568 + ... + 391303101.

It is an arithmetic number, because the mean of its divisors is an integer number (15908536249830).

Almost surely, 2321131343131123 is an apocalyptic number.

321131343131123 is a deficient number, since it is larger than the sum of its proper divisors (60673526864797).

321131343131123 is a wasteful number, since it uses less digits than its factorization.

321131343131123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 781784867 (or 781784860 counting only the distinct ones).

The product of its digits is 11664, while the sum is 32.

The spelling of 321131343131123 in words is "three hundred twenty-one trillion, one hundred thirty-one billion, three hundred forty-three million, one hundred thirty-one thousand, one hundred twenty-three".

Divisors: 1 7 49 83 101 581 707 4067 4949 8383 58681 410767 781784669 5472492683 38307448781 64888127527 78960251569 454216892689 552721760983 3179518248823 3869052326881 6553700880227 45875906161589 321131343131123