321011112 has 32 divisors (see below), whose sum is σ = 824220000. Its totient is φ = 104111424.

The previous prime is 321011101. The next prime is 321011143. The reversal of 321011112 is 211110123.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 179862 + ... + 181637.

It is an arithmetic number, because the mean of its divisors is an integer number (25756875).

Almost surely, 2^321011112 is an apocalyptic number.

It is an amenable number.

321011112 is an abundant number, since it is smaller than the sum of its proper divisors (503208888).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

321011112 is a wasteful number, since it uses less digits than its factorization.

321011112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 361545 (or 361541 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 12.

The square root of 321011112 is about 17916.7829701652. The cubic root of 321011112 is about 684.7100284034.

Adding to 321011112 its reverse (211110123), we get a palindrome (532121235).

It can be divided in two parts, 3210111 and 12, that added together give a palindrome (3210123).

The spelling of 321011112 in words is "three hundred twenty-one million, eleven thousand, one hundred twelve".