1028393011 has 2 divisors, whose sum is σ = 1028393012. Its totient is φ = 1028393010.

The previous prime is 1028392957. The next prime is 1028393017. The reversal of 1028393011 is 1103938201.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1028393011 is a prime.

It is a super-2 number, since 2×1028393011² = 2115184370147292242, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1028393017) 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, 514196505 + 514196506.

It is an arithmetic number, because the mean of its divisors is an integer number (514196506).

Almost surely, 2^1028393011 is an apocalyptic number.

1028393011 is a deficient number, since it is larger than the sum of its proper divisors (1).

1028393011 is an equidigital number, since it uses as much as digits as its factorization.

1028393011 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1296, while the sum is 28.

The square root of 1028393011 is about 32068.5673362562. The cubic root of 1028393011 is about 1009.3761500509.

The spelling of 1028393011 in words is "one billion, twenty-eight million, three hundred ninety-three thousand, eleven".