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103131131269 is a prime number
BaseRepresentation
bin110000000001100011…
…0000010110110000101
3100212012101102021212111
41200003012002312011
53142203032200034
6115213334021021
710310454103045
oct1400306026605
9325171367774
10103131131269
113a8129203a1
1217ba24a7771
13995741763a
144dc4c3d725
152a39082364
hex1803182d85

103131131269 has 2 divisors, whose sum is σ = 103131131270. Its totient is φ = 103131131268.

The previous prime is 103131131197. The next prime is 103131131281. The reversal of 103131131269 is 962131131301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 84943102500 + 18188028769 = 291450^2 + 134863^2 .

It is a cyclic number.

It is not a de Polignac number, because 103131131269 - 215 = 103131098501 is a prime.

It is a super-2 number, since 2×1031311312692 (a number of 23 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 103131131269.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103131131569) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51565565634 + 51565565635.

It is an arithmetic number, because the mean of its divisors is an integer number (51565565635).

Almost surely, 2103131131269 is an apocalyptic number.

It is an amenable number.

103131131269 is a deficient number, since it is larger than the sum of its proper divisors (1).

103131131269 is an equidigital number, since it uses as much as digits as its factorization.

103131131269 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 31.

The spelling of 103131131269 in words is "one hundred three billion, one hundred thirty-one million, one hundred thirty-one thousand, two hundred sixty-nine".