342520543481 has 2 divisors, whose sum is σ = 342520543482. Its totient is φ = 342520543480.

The previous prime is 342520543373. The next prime is 342520543501. The reversal of 342520543481 is 184345025243.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 250141019881 + 92379523600 = 500141^2 + 303940^2 .

It is an emirp because it is prime and its reverse (184345025243) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-342520543481 is a prime.

It is a super-2 number, since 2×342520543481² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (342520563481) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171260271740 + 171260271741.

It is an arithmetic number, because the mean of its divisors is an integer number (171260271741).

Almost surely, 2^342520543481 is an apocalyptic number.

It is an amenable number.

342520543481 is a deficient number, since it is larger than the sum of its proper divisors (1).

342520543481 is an equidigital number, since it uses as much as digits as its factorization.

342520543481 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 460800, while the sum is 41.

The spelling of 342520543481 in words is "three hundred forty-two billion, five hundred twenty million, five hundred forty-three thousand, four hundred eighty-one".