311352043 has 2 divisors, whose sum is σ = 311352044. Its totient is φ = 311352042.

The previous prime is 311352029. The next prime is 311352053. The reversal of 311352043 is 340253113.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-311352043 is a prime.

It is not a weakly prime, because it can be changed into another prime (311352053) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155676021 + 155676022.

It is an arithmetic number, because the mean of its divisors is an integer number (155676022).

Almost surely, 2^311352043 is an apocalyptic number.

311352043 is a deficient number, since it is larger than the sum of its proper divisors (1).

311352043 is an equidigital number, since it uses as much as digits as its factorization.

311352043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1080, while the sum is 22.

The square root of 311352043 is about 17645.1705290711. The cubic root of 311352043 is about 677.7724420007.

The spelling of 311352043 in words is "three hundred eleven million, three hundred fifty-two thousand, forty-three".