1123865327 has 4 divisors (see below), whose sum is σ = 1210316520. Its totient is φ = 1037414136.

The previous prime is 1123865321. The next prime is 1123865339. The reversal of 1123865327 is 7235683211.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 7235683211 = 347 ⋅20852113.

It is a cyclic number.

It is not a de Polignac number, because 1123865327 - 2¹² = 1123861231 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1123865321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 43225577 + ... + 43225602.

It is an arithmetic number, because the mean of its divisors is an integer number (302579130).

Almost surely, 2^1123865327 is an apocalyptic number.

1123865327 is a deficient number, since it is larger than the sum of its proper divisors (86451193).

1123865327 is an equidigital number, since it uses as much as digits as its factorization.

1123865327 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 86451192.

The product of its digits is 60480, while the sum is 38.

The square root of 1123865327 is about 33524.1006889074. The cubic root of 1123865327 is about 1039.6921324297.

The spelling of 1123865327 in words is "one billion, one hundred twenty-three million, eight hundred sixty-five thousand, three hundred twenty-seven".