311202041 has 2 divisors, whose sum is σ = 311202042. Its totient is φ = 311202040.

The previous prime is 311202019. The next prime is 311202043. The reversal of 311202041 is 140202113.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 306775225 + 4426816 = 17515^2 + 2104^2 .

It is a cyclic number.

It is not a de Polignac number, because 311202041 - 2⁶ = 311201977 is a prime.

Together with 311202043, it forms a pair of twin primes.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (311202043) 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, 155601020 + 155601021.

It is an arithmetic number, because the mean of its divisors is an integer number (155601021).

Almost surely, 2^311202041 is an apocalyptic number.

It is an amenable number.

311202041 is a deficient number, since it is larger than the sum of its proper divisors (1).

311202041 is an equidigital number, since it uses as much as digits as its factorization.

311202041 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 48, while the sum is 14.

The square root of 311202041 is about 17640.9195055133. The cubic root of 311202041 is about 677.6635796422.

Adding to 311202041 its reverse (140202113), we get a palindrome (451404154).

The spelling of 311202041 in words is "three hundred eleven million, two hundred two thousand, forty-one".