1128285411 has 16 divisors (see below), whose sum is σ = 1647692928. Its totient is φ = 681080000.

The previous prime is 1128285391. The next prime is 1128285469. The reversal of 1128285411 is 1145828211.

It is a cyclic number.

It is not a de Polignac number, because 1128285411 - 2²⁵ = 1094730979 is a prime.

It is a Smith number, since the sum of its digits (33) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is not an unprimeable number, because it can be changed into a prime (1128285311) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 59826 + ... + 76391.

It is an arithmetic number, because the mean of its divisors is an integer number (102980808).

Almost surely, 2^1128285411 is an apocalyptic number.

1128285411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1128285411 is a deficient number, since it is larger than the sum of its proper divisors (519407517).

1128285411 is a wasteful number, since it uses less digits than its factorization.

1128285411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 136482.

The product of its digits is 5120, while the sum is 33.

The square root of 1128285411 is about 33589.9599731825. The cubic root of 1128285411 is about 1041.0533616772.

The spelling of 1128285411 in words is "one billion, one hundred twenty-eight million, two hundred eighty-five thousand, four hundred eleven".