340542203 has 2 divisors, whose sum is σ = 340542204. Its totient is φ = 340542202.

The previous prime is 340542193. The next prime is 340542211. The reversal of 340542203 is 302245043.

It is a strong prime.

It is an emirp because it is prime and its reverse (302245043) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 340542203 - 2¹⁴ = 340525819 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (340542253) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 170271101 + 170271102.

It is an arithmetic number, because the mean of its divisors is an integer number (170271102).

Almost surely, 2^340542203 is an apocalyptic number.

340542203 is a deficient number, since it is larger than the sum of its proper divisors (1).

340542203 is an equidigital number, since it uses as much as digits as its factorization.

340542203 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2880, while the sum is 23.

The square root of 340542203 is about 18453.7856007920. The cubic root of 340542203 is about 698.3240197258.

Adding to 340542203 its reverse (302245043), we get a palindrome (642787246).

The spelling of 340542203 in words is "three hundred forty million, five hundred forty-two thousand, two hundred three".