343120081 has 2 divisors, whose sum is σ = 343120082. Its totient is φ = 343120080.

The previous prime is 343120073. The next prime is 343120133. The reversal of 343120081 is 180021343.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 320983056 + 22137025 = 17916^2 + 4705^2 .

It is a cyclic number.

It is not a de Polignac number, because 343120081 - 2³ = 343120073 is a prime.

It is a super-2 number, since 2×343120081² = 235462779970893122, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (343120051) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 171560040 + 171560041.

It is an arithmetic number, because the mean of its divisors is an integer number (171560041).

Almost surely, 2^343120081 is an apocalyptic number.

It is an amenable number.

343120081 is a deficient number, since it is larger than the sum of its proper divisors (1).

343120081 is an equidigital number, since it uses as much as digits as its factorization.

343120081 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

The square root of 343120081 is about 18523.5007760412. The cubic root of 343120081 is about 700.0816782243.

The spelling of 343120081 in words is "three hundred forty-three million, one hundred twenty thousand, eighty-one".