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13131230113320 = 233511210710637951
BaseRepresentation
bin1011111100010101101001…
…0011100110111000101000
31201111100000000010000010220
42333011122103212320220
53210120224402111240
643532223121210040
72523462060224064
oct277053223467050
951440000100126
1013131230113320
114202a18083200
121580b06490920
13743367668b47
143357aaa1caa4
1517b8904d35d0
hexbf15a4e6e28

13131230113320 has 384 divisors, whose sum is σ = 43751797125120. Its totient is φ = 3150214848000.

The previous prime is 13131230113319. The next prime is 13131230113333. The reversal of 13131230113320 is 2331103213131.

It is a Harshad number since it is a multiple of its sum of digits (24).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1651515345 + ... + 1651523295.

It is an arithmetic number, because the mean of its divisors is an integer number (113936971680).

Almost surely, 213131230113320 is an apocalyptic number.

13131230113320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 13131230113320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (21875898562560).

13131230113320 is an abundant number, since it is smaller than the sum of its proper divisors (30620567011800).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131230113320 is a wasteful number, since it uses less digits than its factorization.

13131230113320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9157 (or 9142 counting only the distinct ones).

The product of its (nonzero) digits is 972, while the sum is 24.

Adding to 13131230113320 its reverse (2331103213131), we get a palindrome (15462333326451).

The spelling of 13131230113320 in words is "thirteen trillion, one hundred thirty-one billion, two hundred thirty million, one hundred thirteen thousand, three hundred twenty".