342122421391 has 2 divisors, whose sum is σ = 342122421392. Its totient is φ = 342122421390.

The previous prime is 342122421367. The next prime is 342122421413. The reversal of 342122421391 is 193124221243.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 342122421391 - 2¹¹ = 342122419343 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (342122421301) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171061210695 + 171061210696.

It is an arithmetic number, because the mean of its divisors is an integer number (171061210696).

Almost surely, 2^342122421391 is an apocalyptic number.

342122421391 is a deficient number, since it is larger than the sum of its proper divisors (1).

342122421391 is an equidigital number, since it uses as much as digits as its factorization.

342122421391 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 20736, while the sum is 34.

The spelling of 342122421391 in words is "three hundred forty-two billion, one hundred twenty-two million, four hundred twenty-one thousand, three hundred ninety-one".