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31230213303201 = 31143210011047979
BaseRepresentation
bin1110001100111010110011…
…10001010010101110100001
311002120120122021001200211020
413012131121301102232201
513043133434101200301
6150230543435440053
76402210541053303
oct706353161225641
9132516567050736
1031230213303201
119a50728270010
12360475b2b6029
131456cc5353553
1479d79c3a5973
153925821c4436
hex1c6759c52ba1

31230213303201 has 32 divisors (see below), whose sum is σ = 46484435627520. Its totient is φ = 18486331920000.

The previous prime is 31230213303173. The next prime is 31230213303217. The reversal of 31230213303201 is 10230331203213.

It is not a de Polignac number, because 31230213303201 - 233 = 31221623368609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (31230213303281) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 29276430 + ... + 30324408.

It is an arithmetic number, because the mean of its divisors is an integer number (1452638613360).

Almost surely, 231230213303201 is an apocalyptic number.

It is an amenable number.

31230213303201 is a deficient number, since it is larger than the sum of its proper divisors (15254222324319).

31230213303201 is a wasteful number, since it uses less digits than its factorization.

31230213303201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1069037.

The product of its (nonzero) digits is 1944, while the sum is 24.

Adding to 31230213303201 its reverse (10230331203213), we get a palindrome (41460544506414).

The spelling of 31230213303201 in words is "thirty-one trillion, two hundred thirty billion, two hundred thirteen million, three hundred three thousand, two hundred one".

Divisors: 1 3 11 33 43 129 473 1419 21001 63003 231011 693033 903043 1047979 2709129 3143937 9933473 11527769 29800419 34583307 45063097 135189291 495694067 1487082201 22008606979 66025820937 242094676769 726284030307 946370100097 2839110300291 10410071101067 31230213303201