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1311031010325 = 352232023137567
BaseRepresentation
bin10011000100111111100…
…010011010010000010101
311122100000000010211122010
4103010333202122100111
5132434442414312300
62442140200254433
7163501366501341
oct23047742322025
94570000124563
101311031010325
11466006910553
12192105771419
139682558b89a
144765060c621
152418258ca50
hex1313f89a415

1311031010325 has 48 divisors (see below), whose sum is σ = 2261985509376. Its totient is φ = 668764958400.

The previous prime is 1311031010323. The next prime is 1311031010329. The reversal of 1311031010325 is 5230101301131.

It is not a de Polignac number, because 1311031010325 - 21 = 1311031010323 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1311031010323) 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 47 ways as a sum of consecutive naturals, for example, 34879692 + ... + 34917258.

It is an arithmetic number, because the mean of its divisors is an integer number (47124698112).

Almost surely, 21311031010325 is an apocalyptic number.

1311031010325 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1311031010325 is a deficient number, since it is larger than the sum of its proper divisors (950954499051).

1311031010325 is a wasteful number, since it uses less digits than its factorization.

1311031010325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57834 (or 57829 counting only the distinct ones).

The product of its (nonzero) digits is 270, while the sum is 21.

Adding to 1311031010325 its reverse (5230101301131), we get a palindrome (6541132311456).

The spelling of 1311031010325 in words is "one trillion, three hundred eleven billion, thirty-one million, ten thousand, three hundred twenty-five".

Divisors: 1 3 5 15 23 25 69 75 115 345 575 1725 20231 37567 60693 101155 112701 187835 303465 465313 505775 563505 864041 939175 1395939 1517325 2326565 2592123 2817525 4320205 6979695 11632825 12960615 21601025 34898475 64803075 760017977 2280053931 3800089885 11400269655 17480413471 19000449425 52441240413 57001348275 87402067355 262206202065 437010336775 1311031010325