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321054323131 = 1487215907413
BaseRepresentation
bin1001010110000000101…
…01000011000110111011
31010200200211100110102201
410223000111003012323
520230004401320011
6403253524211031
732124011501533
oct4530025030673
91120624313381
10321054323131
11114181882953
1252280539a77
1324376a83789
14117794764c3
158540c8bcc1
hex4ac05431bb

321054323131 has 4 divisors (see below), whose sum is σ = 321270232032. Its totient is φ = 320838414232.

The previous prime is 321054323119. The next prime is 321054323143. The reversal of 321054323131 is 131323450123.

It is a semiprime because it is the product of two primes.

It is an interprime number because it is at equal distance from previous prime (321054323119) and next prime (321054323143).

It is a cyclic number.

It is not a de Polignac number, because 321054323131 - 215 = 321054290363 is a prime.

It is a super-2 number, since 2×3210543231312 (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321054323131.

It is not an unprimeable number, because it can be changed into a prime (321054353131) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 107952220 + ... + 107955193.

It is an arithmetic number, because the mean of its divisors is an integer number (80317558008).

Almost surely, 2321054323131 is an apocalyptic number.

321054323131 is a deficient number, since it is larger than the sum of its proper divisors (215908901).

321054323131 is a wasteful number, since it uses less digits than its factorization.

321054323131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 215908900.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 321054323131 its reverse (131323450123), we get a palindrome (452377773254).

The spelling of 321054323131 in words is "three hundred twenty-one billion, fifty-four million, three hundred twenty-three thousand, one hundred thirty-one".

Divisors: 1 1487 215907413 321054323131