321011116 has 12 divisors (see below), whose sum is σ = 561895488. Its totient is φ = 160469552.

The previous prime is 321011101. The next prime is 321011143. The reversal of 321011116 is 611110123.

It is a self number, because there is not a number n which added to its sum of digits gives 321011116.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27525 + ... + 37411.

It is an arithmetic number, because the mean of its divisors is an integer number (46824624).

Almost surely, 2^321011116 is an apocalyptic number.

It is an amenable number.

321011116 is a deficient number, since it is larger than the sum of its proper divisors (240884372).

321011116 is a wasteful number, since it uses less digits than its factorization.

321011116 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18008 (or 18006 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 321011116 is about 17916.7830817923. The cubic root of 321011116 is about 684.7100312474.

Adding to 321011116 its reverse (611110123), we get a palindrome (932121239).

The spelling of 321011116 in words is "three hundred twenty-one million, eleven thousand, one hundred sixteen".