320320011 has 16 divisors (see below), whose sum is σ = 486178560. Its totient is φ = 185692320.

The previous prime is 320319973. The next prime is 320320037. The reversal of 320320011 is 110023023.

It is a happy number.

It is not a de Polignac number, because 320320011 - 2¹⁰ = 320318987 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320320081) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 210256 + ... + 211773.

It is an arithmetic number, because the mean of its divisors is an integer number (30386160).

Almost surely, 2^320320011 is an apocalyptic number.

320320011 is a deficient number, since it is larger than the sum of its proper divisors (165858549).

320320011 is a wasteful number, since it uses less digits than its factorization.

320320011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 422066.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 320320011 is about 17897.4861642634. The cubic root of 320320011 is about 684.2183073390.

Adding to 320320011 its reverse (110023023), we get a palindrome (430343034).

The spelling of 320320011 in words is "three hundred twenty million, three hundred twenty thousand, eleven".