1128375611 has 8 divisors (see below), whose sum is σ = 1231200000. Its totient is φ = 1025592040.

The previous prime is 1128375551. The next prime is 1128375617. The reversal of 1128375611 is 1165738211.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1128375611 - 2¹⁴ = 1128359227 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128375617) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 93290 + ... + 104688.

It is an arithmetic number, because the mean of its divisors is an integer number (153900000).

Almost surely, 2^1128375611 is an apocalyptic number.

1128375611 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1128375611 is a deficient number, since it is larger than the sum of its proper divisors (102824389).

1128375611 is a wasteful number, since it uses less digits than its factorization.

1128375611 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20409.

The product of its digits is 10080, while the sum is 35.

The square root of 1128375611 is about 33591.3026094553. The cubic root of 1128375611 is about 1041.0811030359.

The spelling of 1128375611 in words is "one billion, one hundred twenty-eight million, three hundred seventy-five thousand, six hundred eleven".