343320423491 has 2 divisors, whose sum is σ = 343320423492. Its totient is φ = 343320423490.

The previous prime is 343320423469. The next prime is 343320423557. The reversal of 343320423491 is 194324023343.

It is a weak prime.

It is an emirp because it is prime and its reverse (194324023343) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 343320423491 - 2²⁶ = 343253314627 is a prime.

It is not a weakly prime, because it can be changed into another prime (343320420491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171660211745 + 171660211746.

It is an arithmetic number, because the mean of its divisors is an integer number (171660211746).

Almost surely, 2^343320423491 is an apocalyptic number.

343320423491 is a deficient number, since it is larger than the sum of its proper divisors (1).

343320423491 is an equidigital number, since it uses as much as digits as its factorization.

343320423491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 186624, while the sum is 38.

The spelling of 343320423491 in words is "three hundred forty-three billion, three hundred twenty million, four hundred twenty-three thousand, four hundred ninety-one".