18113021032 has 16 divisors (see below), whose sum is σ = 33972233760. Its totient is φ = 9053758704.

The previous prime is 18113021009. The next prime is 18113021039. The reversal of 18113021032 is 23012031181.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 18113020994 and 18113021012.

It is not an unprimeable number, because it can be changed into a prime (18113021039) 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 3 ways as a sum of consecutive naturals, for example, 315868 + ... + 368779.

It is an arithmetic number, because the mean of its divisors is an integer number (2123264610).

Almost surely, 2^18113021032 is an apocalyptic number.

It is an amenable number.

18113021032 is a deficient number, since it is larger than the sum of its proper divisors (15859212728).

18113021032 is a wasteful number, since it uses less digits than its factorization.

18113021032 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 687960 (or 687956 counting only the distinct ones).

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

The spelling of 18113021032 in words is "eighteen billion, one hundred thirteen million, twenty-one thousand, thirty-two".