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13531133087 is a prime number
BaseRepresentation
bin11001001101000010…
…01011010010011111
31021221000012210002022
430212201023102133
5210202432224322
610114403050355
7656212506413
oct144641132237
937830183068
1013531133087
115813a7661a
1227576709bb
131378437734
14925106d43
15542db9942
hex32684b49f

13531133087 has 2 divisors, whose sum is σ = 13531133088. Its totient is φ = 13531133086.

The previous prime is 13531133039. The next prime is 13531133089. The reversal of 13531133087 is 78033113531.

13531133087 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 a cyclic number.

It is not a de Polignac number, because 13531133087 - 26 = 13531133023 is a prime.

It is a super-2 number, since 2×135311330872 (a number of 21 digits) contains 22 as substring.

Together with 13531133089, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (13531133089) 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, 6765566543 + 6765566544.

It is an arithmetic number, because the mean of its divisors is an integer number (6765566544).

Almost surely, 213531133087 is an apocalyptic number.

13531133087 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531133087 is an equidigital number, since it uses as much as digits as its factorization.

13531133087 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 22680, while the sum is 35.

The spelling of 13531133087 in words is "thirteen billion, five hundred thirty-one million, one hundred thirty-three thousand, eighty-seven".