1119021818 has 32 divisors (see below), whose sum is σ = 1763553792. Its totient is φ = 531878400.

The previous prime is 1119021817. The next prime is 1119021857. The reversal of 1119021818 is 8181209111.

It is not an unprimeable number, because it can be changed into a prime (1119021817) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1959473 + ... + 1960043.

It is an arithmetic number, because the mean of its divisors is an integer number (55111056).

Almost surely, 2^1119021818 is an apocalyptic number.

1119021818 is a deficient number, since it is larger than the sum of its proper divisors (644531974).

1119021818 is a wasteful number, since it uses less digits than its factorization.

1119021818 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1110.

The product of its (nonzero) digits is 1152, while the sum is 32.

The square root of 1119021818 is about 33451.7834801076. The cubic root of 1119021818 is about 1038.1963987232.

The spelling of 1119021818 in words is "one billion, one hundred nineteen million, twenty-one thousand, eight hundred eighteen".