342321521447 has 2 divisors, whose sum is σ = 342321521448. Its totient is φ = 342321521446.

The previous prime is 342321521431. The next prime is 342321521461. The reversal of 342321521447 is 744125123243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342321521447 - 2⁴ = 342321521431 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 342321521447.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342321521147) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171160760723 + 171160760724.

It is an arithmetic number, because the mean of its divisors is an integer number (171160760724).

Almost surely, 2^342321521447 is an apocalyptic number.

342321521447 is a deficient number, since it is larger than the sum of its proper divisors (1).

342321521447 is an equidigital number, since it uses as much as digits as its factorization.

342321521447 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 161280, while the sum is 38.

The spelling of 342321521447 in words is "three hundred forty-two billion, three hundred twenty-one million, five hundred twenty-one thousand, four hundred forty-seven".