135451425421211 has 2 divisors, whose sum is σ = 135451425421212. Its totient is φ = 135451425421210.

The previous prime is 135451425421201. The next prime is 135451425421217. The reversal of 135451425421211 is 112124524154531.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-135451425421211 is a prime.

It is not a weakly prime, because it can be changed into another prime (135451425421217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67725712710605 + 67725712710606.

It is an arithmetic number, because the mean of its divisors is an integer number (67725712710606).

Almost surely, 2^{135451425421211} is an apocalyptic number.

135451425421211 is a deficient number, since it is larger than the sum of its proper divisors (1).

135451425421211 is an equidigital number, since it uses as much as digits as its factorization.

135451425421211 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 192000, while the sum is 41.

Adding to 135451425421211 its reverse (112124524154531), we get a palindrome (247575949575742).

The spelling of 135451425421211 in words is "one hundred thirty-five trillion, four hundred fifty-one billion, four hundred twenty-five million, four hundred twenty-one thousand, two hundred eleven".