1128603001 has 4 divisors (see below), whose sum is σ = 1128986100. Its totient is φ = 1128219904.

The previous prime is 1128602989. The next prime is 1128603013. The reversal of 1128603001 is 1003068211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1003068211 = 29 ⋅34588559.

It is an interprime number because it is at equal distance from previous prime (1128602989) and next prime (1128603013).

It can be written as a sum of positive squares in 2 ways, for example, as 85377600 + 1043225401 = 9240^2 + 32299^2 .

It is a cyclic number.

It is not a de Polignac number, because 1128603001 - 2¹¹ = 1128600953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1128603071) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 187096 + ... + 193033.

It is an arithmetic number, because the mean of its divisors is an integer number (282246525).

Almost surely, 2^1128603001 is an apocalyptic number.

It is an amenable number.

1128603001 is a deficient number, since it is larger than the sum of its proper divisors (383099).

1128603001 is an equidigital number, since it uses as much as digits as its factorization.

1128603001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 383098.

The product of its (nonzero) digits is 288, while the sum is 22.

The square root of 1128603001 is about 33594.6870948369. The cubic root of 1128603001 is about 1041.1510311490.

The spelling of 1128603001 in words is "one billion, one hundred twenty-eight million, six hundred three thousand, one".