135512421243091 has 2 divisors, whose sum is σ = 135512421243092. Its totient is φ = 135512421243090.

The previous prime is 135512421242917. The next prime is 135512421243161. The reversal of 135512421243091 is 190342124215531.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 135512421243091 - 2¹⁵ = 135512421210323 is a prime.

It is a super-2 number, since 2×135512421243091² (a number of 29 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (135518421243091) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67756210621545 + 67756210621546.

It is an arithmetic number, because the mean of its divisors is an integer number (67756210621546).

Almost surely, 2^{135512421243091} is an apocalyptic number.

135512421243091 is a deficient number, since it is larger than the sum of its proper divisors (1).

135512421243091 is an equidigital number, since it uses as much as digits as its factorization.

135512421243091 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 259200, while the sum is 43.

The spelling of 135512421243091 in words is "one hundred thirty-five trillion, five hundred twelve billion, four hundred twenty-one million, two hundred forty-three thousand, ninety-one".