343420423403831 has 2 divisors, whose sum is σ = 343420423403832. Its totient is φ = 343420423403830.

The previous prime is 343420423403809. The next prime is 343420423403867. The reversal of 343420423403831 is 138304324024343.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 343420423403831 - 2⁶ = 343420423403767 is a prime.

It is a super-2 number, since 2×343420423403831² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (343420423403891) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171710211701915 + 171710211701916.

It is an arithmetic number, because the mean of its divisors is an integer number (171710211701916).

Almost surely, 2^{343420423403831} is an apocalyptic number.

343420423403831 is a deficient number, since it is larger than the sum of its proper divisors (1).

343420423403831 is an equidigital number, since it uses as much as digits as its factorization.

343420423403831 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1990656, while the sum is 44.

The spelling of 343420423403831 in words is "three hundred forty-three trillion, four hundred twenty billion, four hundred twenty-three million, four hundred three thousand, eight hundred thirty-one".