345130211 has 2 divisors, whose sum is σ = 345130212. Its totient is φ = 345130210.

The previous prime is 345130207. The next prime is 345130217. The reversal of 345130211 is 112031543.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 345130211 - 2² = 345130207 is a prime.

It is a super-3 number, since 3×345130211³ (a number of 27 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (345130217) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172565105 + 172565106.

It is an arithmetic number, because the mean of its divisors is an integer number (172565106).

Almost surely, 2^345130211 is an apocalyptic number.

345130211 is a deficient number, since it is larger than the sum of its proper divisors (1).

345130211 is an equidigital number, since it uses as much as digits as its factorization.

345130211 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 345130211 is about 18577.6804526292. The cubic root of 345130211 is about 701.4461334975.

Adding to 345130211 its reverse (112031543), we get a palindrome (457161754).

The spelling of 345130211 in words is "three hundred forty-five million, one hundred thirty thousand, two hundred eleven".