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131020224442101 = 33311633163303617
BaseRepresentation
bin11101110010100110000101…
…111011111010111011110101
3122011220102002201021211012000
4131302212011323322323311
5114133113404424121401
61142353505444245513
736411620205321531
oct3562460573727365
9564812081254160
10131020224442101
1138824402009885
12128407200a0899
13581520088cc17
14244d5ac632bc1
15102320b612186
hex772985efaef5

131020224442101 has 64 divisors (see below), whose sum is σ = 201659092131840. Its totient is φ = 83983756124160.

The previous prime is 131020224442097. The next prime is 131020224442117. The reversal of 131020224442101 is 101244422020131.

131020224442101 is a `hidden beast` number, since 1 + 3 + 1 + 0 + 2 + 0 + 2 + 2 + 444 + 210 + 1 = 666.

It is not a de Polignac number, because 131020224442101 - 22 = 131020224442097 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (131020224442141) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 431379445 + ... + 431683061.

It is an arithmetic number, because the mean of its divisors is an integer number (3150923314560).

Almost surely, 2131020224442101 is an apocalyptic number.

It is an amenable number.

131020224442101 is a deficient number, since it is larger than the sum of its proper divisors (70638867689739).

131020224442101 is a wasteful number, since it uses less digits than its factorization.

131020224442101 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 306983 (or 306977 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 131020224442101 its reverse (101244422020131), we get a palindrome (232264646462232).

The spelling of 131020224442101 in words is "one hundred thirty-one trillion, twenty billion, two hundred twenty-four million, four hundred forty-two thousand, one hundred one".

Divisors: 1 3 9 27 31 93 163 279 489 837 1467 3163 4401 5053 9489 15159 28467 45477 85401 98053 136431 294159 303617 515569 882477 910851 1546707 2647431 2732553 4640121 8197659 9412127 13920363 15982639 28236381 47947917 49489571 84709143 143843751 148468713 254127429 431531253 445406139 960340571 1336218417 1534176701 2881021713 4602530103 8643065139 13807590309 25929195417 29770557701 41422770927 89311673103 156535513073 267935019309 469606539219 803805057927 1408819617657 4226458852971 4852600905263 14557802715789 43673408147367 131020224442101