1128338513 has 2 divisors, whose sum is σ = 1128338514. Its totient is φ = 1128338512.

The previous prime is 1128338423. The next prime is 1128338521. The reversal of 1128338513 is 3158338211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 958088209 + 170250304 = 30953^2 + 13048^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128338513 - 2¹⁰ = 1128337489 is a prime.

It is not a weakly prime, because it can be changed into another prime (1128338543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 564169256 + 564169257.

It is an arithmetic number, because the mean of its divisors is an integer number (564169257).

Almost surely, 2^1128338513 is an apocalyptic number.

It is an amenable number.

1128338513 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128338513 is an equidigital number, since it uses as much as digits as its factorization.

1128338513 is an evil number, because the sum of its binary digits is even.

The product of its digits is 17280, while the sum is 35.

The square root of 1128338513 is about 33590.7504084086. The cubic root of 1128338513 is about 1041.0696935816.

The spelling of 1128338513 in words is "one billion, one hundred twenty-eight million, three hundred thirty-eight thousand, five hundred thirteen".