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201001312031201 = 11163214152360277
BaseRepresentation
bin101101101100111101000011…
…110011011001000111100001
3222100200112112000212120111122
4231230331003303121013201
5202321201141334444301
61551254421125222025
760223602614203433
oct5554750363310741
9870615460776448
10201001312031201
11590551a5603750
121a663498861915
13882045b315936
14378c730400653
15183878aac081b
hexb6cf43cd91e1

201001312031201 has 16 divisors (see below), whose sum is σ = 220722448056768. Its totient is φ = 181522604836800.

The previous prime is 201001312031161. The next prime is 201001312031203. The reversal of 201001312031201 is 102130213100102.

It is a cyclic number.

It is not a de Polignac number, because 201001312031201 - 210 = 201001312030177 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 201001312031201.

It is not an unprimeable number, because it can be changed into a prime (201001312031203) 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, 22341326 + ... + 30018951.

It is an arithmetic number, because the mean of its divisors is an integer number (13795153003548).

Almost surely, 2201001312031201 is an apocalyptic number.

It is an amenable number.

201001312031201 is a deficient number, since it is larger than the sum of its proper divisors (19721136025567).

201001312031201 is a wasteful number, since it uses less digits than its factorization.

201001312031201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 52362592.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 201001312031201 its reverse (102130213100102), we get a palindrome (303131525131303).

The spelling of 201001312031201 in words is "two hundred one trillion, one billion, three hundred twelve million, thirty-one thousand, two hundred one".

Divisors: 1 11 163 1793 2141 23551 348983 3838813 52360277 575963047 8534725151 93881976661 112103353057 1233136883627 18272846548291 201001312031201