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131231000023303 = 137151103310515843
BaseRepresentation
bin11101110101101010011001…
…001000111101000100000111
3122012122120011000201202012111
4131311222121020331010013
5114200042042001221203
61143034404504401451
736433061342232265
oct3565523110750407
9565576130652174
10131231000023303
11388a5833367694
1212875544476287
13582c05147c93b
142459885887435
151028945a9626d
hex775a9923d107

131231000023303 has 32 divisors (see below), whose sum is σ = 133342674043392. Its totient is φ = 129139980480000.

The previous prime is 131231000023229. The next prime is 131231000023373. The reversal of 131231000023303 is 303320000132131.

It is a cyclic number.

It is not a de Polignac number, because 131231000023303 - 217 = 131230999892231 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 (131231000023373) 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, 22459521300 + ... + 22459527142.

It is an arithmetic number, because the mean of its divisors is an integer number (4166958563856).

Almost surely, 2131231000023303 is an apocalyptic number.

131231000023303 is a deficient number, since it is larger than the sum of its proper divisors (2111674020089).

131231000023303 is a wasteful number, since it uses less digits than its factorization.

131231000023303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8215.

The product of its (nonzero) digits is 972, while the sum is 22.

Adding to 131231000023303 its reverse (303320000132131), we get a palindrome (434551000155434).

The spelling of 131231000023303 in words is "one hundred thirty-one trillion, two hundred thirty-one billion, twenty-three thousand, three hundred three".

Divisors: 1 137 151 1033 1051 5843 20687 141521 143987 155983 158701 800491 882293 1085683 6035819 6140993 21369671 21742037 120874141 148738571 163938133 826907203 841316041 911408669 927289943 6343645769 22459524221 124862987653 127038722191 869079470353 957890511119 131231000023303