135420523431041 has 2 divisors, whose sum is σ = 135420523431042. Its totient is φ = 135420523431040.

The previous prime is 135420523431023. The next prime is 135420523431103. The reversal of 135420523431041 is 140134325024531.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 73031124930625 + 62389398500416 = 8545825^2 + 7898696^2 .

It is a cyclic number.

It is not a de Polignac number, because 135420523431041 - 2⁶ = 135420523430977 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 135420523430986 and 135420523431004.

It is not a weakly prime, because it can be changed into another prime (135420523431001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 67710261715520 + 67710261715521.

It is an arithmetic number, because the mean of its divisors is an integer number (67710261715521).

Almost surely, 2^{135420523431041} is an apocalyptic number.

It is an amenable number.

135420523431041 is a deficient number, since it is larger than the sum of its proper divisors (1).

135420523431041 is an equidigital number, since it uses as much as digits as its factorization.

135420523431041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 172800, while the sum is 38.

Adding to 135420523431041 its reverse (140134325024531), we get a palindrome (275554848455572).

The spelling of 135420523431041 in words is "one hundred thirty-five trillion, four hundred twenty billion, five hundred twenty-three million, four hundred thirty-one thousand, forty-one".