1128285311 has 2 divisors, whose sum is σ = 1128285312. Its totient is φ = 1128285310.

The previous prime is 1128285287. The next prime is 1128285313. The reversal of 1128285311 is 1135828211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1128285311 - 2¹⁴ = 1128268927 is a prime.

Together with 1128285313, 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 (1128285313) 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, 564142655 + 564142656.

It is an arithmetic number, because the mean of its divisors is an integer number (564142656).

Almost surely, 2^1128285311 is an apocalyptic number.

1128285311 is a deficient number, since it is larger than the sum of its proper divisors (1).

1128285311 is an equidigital number, since it uses as much as digits as its factorization.

1128285311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 3840, while the sum is 32.

The square root of 1128285311 is about 33589.9584846424. The cubic root of 1128285311 is about 1041.0533309210.

The spelling of 1128285311 in words is "one billion, one hundred twenty-eight million, two hundred eighty-five thousand, three hundred eleven".