385197348311 has 2 divisors, whose sum is σ = 385197348312. Its totient is φ = 385197348310.

The previous prime is 385197348271. The next prime is 385197348313. The reversal of 385197348311 is 113843791583.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-385197348311 is a prime.

It is a Sophie Germain prime.

Together with 385197348313, it forms a pair of twin primes.

It is a Chen prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (385197348313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 192598674155 + 192598674156.

It is an arithmetic number, because the mean of its divisors is an integer number (192598674156).

Almost surely, 2^385197348311 is an apocalyptic number.

385197348311 is a deficient number, since it is larger than the sum of its proper divisors (1).

385197348311 is an equidigital number, since it uses as much as digits as its factorization.

385197348311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2177280, while the sum is 53.

The spelling of 385197348311 in words is "three hundred eighty-five billion, one hundred ninety-seven million, three hundred forty-eight thousand, three hundred eleven".