1128339611 has 24 divisors (see below), whose sum is σ = 1335958704. Its totient is φ = 950019840.

The previous prime is 1128339539. The next prime is 1128339613. The reversal of 1128339611 is 1169338211.

It is not a de Polignac number, because 1128339611 - 2¹⁰ = 1128338587 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128339613) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1183511 + ... + 1184463.

It is an arithmetic number, because the mean of its divisors is an integer number (55664946).

Almost surely, 2^1128339611 is an apocalyptic number.

1128339611 is a deficient number, since it is larger than the sum of its proper divisors (207619093).

1128339611 is an equidigital number, since it uses as much as digits as its factorization.

1128339611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1371 (or 1364 counting only the distinct ones).

The product of its digits is 7776, while the sum is 35.

The square root of 1128339611 is about 33590.7667521895. The cubic root of 1128339611 is about 1041.0700312740.

The spelling of 1128339611 in words is "one billion, one hundred twenty-eight million, three hundred thirty-nine thousand, six hundred eleven".