313243043 has 2 divisors, whose sum is σ = 313243044. Its totient is φ = 313243042.

The previous prime is 313243039. The next prime is 313243057. The reversal of 313243043 is 340342313.

It is a weak prime.

It is an emirp because it is prime and its reverse (340342313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313243043 - 2² = 313243039 is a prime.

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 (313243013) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156621521 + 156621522.

It is an arithmetic number, because the mean of its divisors is an integer number (156621522).

Almost surely, 2^313243043 is an apocalyptic number.

313243043 is a deficient number, since it is larger than the sum of its proper divisors (1).

313243043 is an equidigital number, since it uses as much as digits as its factorization.

313243043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 23.

The square root of 313243043 is about 17698.6734813658. The cubic root of 313243043 is about 679.1418261598.

Adding to 313243043 its reverse (340342313), we get a palindrome (653585356).

The spelling of 313243043 in words is "three hundred thirteen million, two hundred forty-three thousand, forty-three".