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13531202171 is a prime number
BaseRepresentation
bin11001001101000010…
…11100001001111011
31021221000100021211222
430212201130021323
5210202441432141
610114404342255
7656213215004
oct144641341173
937830307758
1013531202171
115814013513
1227576a498b
131378460006
149251241ab
15542dd014b
hex32685c27b

13531202171 has 2 divisors, whose sum is σ = 13531202172. Its totient is φ = 13531202170.

The previous prime is 13531202143. The next prime is 13531202177. The reversal of 13531202171 is 17120213531.

13531202171 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (17120213531) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 13531202171 - 230 = 12457460347 is a prime.

It is a super-2 number, since 2×135312021712 (a number of 21 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 13531202171.

It is not a weakly prime, because it can be changed into another prime (13531202177) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765601085 + 6765601086.

It is an arithmetic number, because the mean of its divisors is an integer number (6765601086).

Almost surely, 213531202171 is an apocalyptic number.

13531202171 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531202171 is an equidigital number, since it uses as much as digits as its factorization.

13531202171 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1260, while the sum is 26.

The spelling of 13531202171 in words is "thirteen billion, five hundred thirty-one million, two hundred two thousand, one hundred seventy-one".