340921003 has 2 divisors, whose sum is σ = 340921004. Its totient is φ = 340921002.

The previous prime is 340920989. The next prime is 340921051. The reversal of 340921003 is 300129043.

It is a weak prime.

It is an emirp because it is prime and its reverse (300129043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340921003 - 2¹⁷ = 340789931 is a prime.

It is not a weakly prime, because it can be changed into another prime (340921093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170460501 + 170460502.

It is an arithmetic number, because the mean of its divisors is an integer number (170460502).

Almost surely, 2^340921003 is an apocalyptic number.

340921003 is a deficient number, since it is larger than the sum of its proper divisors (1).

340921003 is an equidigital number, since it uses as much as digits as its factorization.

340921003 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 340921003 is about 18464.0462250288. The cubic root of 340921003 is about 698.5828492394.

The spelling of 340921003 in words is "three hundred forty million, nine hundred twenty-one thousand, three".