342244403233721 has 2 divisors, whose sum is σ = 342244403233722. Its totient is φ = 342244403233720.

The previous prime is 342244403233717. The next prime is 342244403233753. The reversal of 342244403233721 is 127332304442243.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 290818451560000 + 51425951673721 = 17053400^2 + 7171189^2 .

It is a cyclic number.

It is not a de Polignac number, because 342244403233721 - 2² = 342244403233717 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (342244403236721) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171122201616860 + 171122201616861.

It is an arithmetic number, because the mean of its divisors is an integer number (171122201616861).

Almost surely, 2^{342244403233721} is an apocalyptic number.

It is an amenable number.

342244403233721 is a deficient number, since it is larger than the sum of its proper divisors (1).

342244403233721 is an equidigital number, since it uses as much as digits as its factorization.

342244403233721 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2322432, while the sum is 44.

Adding to 342244403233721 its reverse (127332304442243), we get a palindrome (469576707675964).

The spelling of 342244403233721 in words is "three hundred forty-two trillion, two hundred forty-four billion, four hundred three million, two hundred thirty-three thousand, seven hundred twenty-one".