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131220069359 is a prime number
BaseRepresentation
bin111101000110101010…
…0110101101111101111
3110112200221201012010212
41322031110311233233
54122214314204414
6140140501253035
712323520120611
oct1721524655757
9415627635125
10131220069359
1150717343315
122152140417b
13c4b28a4b72
1464cb540db1
15363001583e
hex1e8d535bef

131220069359 has 2 divisors, whose sum is σ = 131220069360. Its totient is φ = 131220069358.

The previous prime is 131220069349. The next prime is 131220069427. The reversal of 131220069359 is 953960022131.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 131220069359 - 220 = 131219020783 is a prime.

It is a super-3 number, since 3×1312200693593 (a number of 34 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (131220069329) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65610034679 + 65610034680.

It is an arithmetic number, because the mean of its divisors is an integer number (65610034680).

Almost surely, 2131220069359 is an apocalyptic number.

131220069359 is a deficient number, since it is larger than the sum of its proper divisors (1).

131220069359 is an equidigital number, since it uses as much as digits as its factorization.

131220069359 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 87480, while the sum is 41.

The spelling of 131220069359 in words is "one hundred thirty-one billion, two hundred twenty million, sixty-nine thousand, three hundred fifty-nine".