345211003 has 2 divisors, whose sum is σ = 345211004. Its totient is φ = 345211002.

The previous prime is 345210991. The next prime is 345211007. The reversal of 345211003 is 300112543.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 345211003 - 2⁹ = 345210491 is a prime.

It is not a weakly prime, because it can be changed into another prime (345211007) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 172605501 + 172605502.

It is an arithmetic number, because the mean of its divisors is an integer number (172605502).

Almost surely, 2^345211003 is an apocalyptic number.

345211003 is a deficient number, since it is larger than the sum of its proper divisors (1).

345211003 is an equidigital number, since it uses as much as digits as its factorization.

345211003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 360, while the sum is 19.

The square root of 345211003 is about 18579.8547626186. The cubic root of 345211003 is about 701.5008633866.

Adding to 345211003 its reverse (300112543), we get a palindrome (645323546).

The spelling of 345211003 in words is "three hundred forty-five million, two hundred eleven thousand, three".