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13131131002223 = 131797612545179
BaseRepresentation
bin1011111100010101010001…
…1001100001110101101111
31201111022202002121122021112
42333011110121201311233
53210120024014032343
643532205221022235
72523456444623333
oct277052431416557
951438662548245
1013131131002223
114202977139603
121580a9925497b
1374334cc76b20
1433579b7bd7c3
1517b886957218
hexbf154661d6f

13131131002223 has 16 divisors (see below), whose sum is σ = 15127415765280. Its totient is φ = 11290432720896.

The previous prime is 13131131002193. The next prime is 13131131002261. The reversal of 13131131002223 is 32220013113131.

It is a cyclic number.

It is not a de Polignac number, because 13131131002223 - 26 = 13131131002159 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131131002273) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 306251153 + ... + 306294026.

It is an arithmetic number, because the mean of its divisors is an integer number (945463485330).

Almost surely, 213131131002223 is an apocalyptic number.

13131131002223 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

13131131002223 is a deficient number, since it is larger than the sum of its proper divisors (1996284763057).

13131131002223 is a wasteful number, since it uses less digits than its factorization.

13131131002223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 612545306.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 13131131002223 its reverse (32220013113131), we get a palindrome (45351144115354).

The spelling of 13131131002223 in words is "thirteen trillion, one hundred thirty-one billion, one hundred thirty-one million, two thousand, two hundred twenty-three".

Divisors: 1 13 17 97 221 1261 1649 21437 612545179 7963087327 10413268043 59416882363 135372484559 772419470719 1010087000171 13131131002223