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13131230201300 = 2252131312302013
BaseRepresentation
bin1011111100010101101001…
…0011111100010111010100
31201111100000000021110211102
42333011122103330113110
53210120224412420200
643532223123125232
72523462061041431
oct277053223742724
951440000243742
1013131230201300
114202a18133312
121580b06513818
13743367699bc3
143357aaa42b88
1517b8904ee6d5
hexbf15a4fc5d4

13131230201300 has 18 divisors (see below), whose sum is σ = 28494769537038. Its totient is φ = 5252492080480.

The previous prime is 13131230201261. The next prime is 13131230201329. The reversal of 13131230201300 is 310203213131.

It can be written as a sum of positive squares in 3 ways, for example, as 74382743824 + 13056847457476 = 272732^2 + 3613426^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 65656150907 + ... + 65656151106.

Almost surely, 213131230201300 is an apocalyptic number.

13131230201300 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

13131230201300 is an abundant number, since it is smaller than the sum of its proper divisors (15363539335738).

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

13131230201300 is a wasteful number, since it uses less digits than its factorization.

13131230201300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131312302027 (or 131312302020 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 13131230201300 its reverse (310203213131), we get a palindrome (13441433414431).

The spelling of 13131230201300 in words is "thirteen trillion, one hundred thirty-one billion, two hundred thirty million, two hundred one thousand, three hundred".

Divisors: 1 2 4 5 10 20 25 50 100 131312302013 262624604026 525249208052 656561510065 1313123020130 2626246040260 3282807550325 6565615100650 13131230201300