1030304030491 has 2 divisors, whose sum is σ = 1030304030492. Its totient is φ = 1030304030490.

The previous prime is 1030304030419. The next prime is 1030304030521. The reversal of 1030304030491 is 1940304030301.

Together with previous prime (1030304030419) it forms an Ormiston pair, because they use the same digits, order apart.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1030304030491 is a prime.

It is not a weakly prime, because it can be changed into another prime (1030304034491) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515152015245 + 515152015246.

It is an arithmetic number, because the mean of its divisors is an integer number (515152015246).

Almost surely, 2^{1030304030491} is an apocalyptic number.

1030304030491 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030304030491 is an equidigital number, since it uses as much as digits as its factorization.

1030304030491 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3888, while the sum is 28.

Adding to 1030304030491 its reverse (1940304030301), we get a palindrome (2970608060792).

The spelling of 1030304030491 in words is "one trillion, thirty billion, three hundred four million, thirty thousand, four hundred ninety-one".