320111016 has 32 divisors (see below), whose sum is σ = 808207200. Its totient is φ = 105646400.

The previous prime is 320110957. The next prime is 320111021. The reversal of 320111016 is 610111023.

It is a junction number, because it is equal to n+sod(n) for n = 320110986 and 320111004.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63606 + ... + 68453.

It is an arithmetic number, because the mean of its divisors is an integer number (25256475).

Almost surely, 2^320111016 is an apocalyptic number.

It is an amenable number.

320111016 is an abundant number, since it is smaller than the sum of its proper divisors (488096184).

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

320111016 is a wasteful number, since it uses less digits than its factorization.

320111016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 132169 (or 132165 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 320111016 is about 17891.6465424510. The cubic root of 320111016 is about 684.0694673128.

Adding to 320111016 its reverse (610111023), we get a palindrome (930222039).

The spelling of 320111016 in words is "three hundred twenty million, one hundred eleven thousand, sixteen".