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131131202120333 = 6771313553115923
BaseRepresentation
bin11101110100001101011100…
…101110001010101010001101
3122012022000112221100222221222
4131310031130232022222031
5114141423200220322313
61142520502001133125
736422626301114042
oct3564153456125215
9565260487328858
10131131202120333
1138867481017028
121285a13232a1a5
1358228087acb4c
142454ad95d31c9
15102605447c208
hex77435cb8aa8d

131131202120333 has 32 divisors (see below), whose sum is σ = 135427043515392. Its totient is φ = 126916860470400.

The previous prime is 131131202120323. The next prime is 131131202120357. The reversal of 131131202120333 is 333021202131131.

It is a cyclic number.

It is not a de Polignac number, because 131131202120333 - 212 = 131131202116237 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131131202120323) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 8235324710 + ... + 8235340632.

It is an arithmetic number, because the mean of its divisors is an integer number (4232095109856).

Almost surely, 2131131202120333 is an apocalyptic number.

It is an amenable number.

131131202120333 is a deficient number, since it is larger than the sum of its proper divisors (4295841395059).

131131202120333 is a wasteful number, since it uses less digits than its factorization.

131131202120333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21905.

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 131131202120333 its reverse (333021202131131), we get a palindrome (464152404251464).

The spelling of 131131202120333 in words is "one hundred thirty-one trillion, one hundred thirty-one billion, two hundred two million, one hundred twenty thousand, three hundred thirty-three".

Divisors: 1 67 71 313 4757 5531 15923 20971 22223 370577 392701 1066841 1130533 1488941 1731203 4983899 26310967 75745711 88070113 115990601 122915413 333921233 353856829 5900697571 6252978023 8235332671 23708407543 27565945369 418949527541 1846918339723 1957182121199 131131202120333