320111434 has 16 divisors (see below), whose sum is σ = 485858880. Its totient is φ = 158165280.

The previous prime is 320111419. The next prime is 320111437. The reversal of 320111434 is 434111023.

It is a super-3 number, since 3×320111434³ (a number of 26 digits) contains 333 as substring.

It is not an unprimeable number, because it can be changed into a prime (320111437) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 115849 + ... + 118579.

It is an arithmetic number, because the mean of its divisors is an integer number (30366180).

Almost surely, 2^320111434 is an apocalyptic number.

320111434 is a deficient number, since it is larger than the sum of its proper divisors (165747446).

320111434 is a wasteful number, since it uses less digits than its factorization.

320111434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3405.

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 320111434 is about 17891.6582238763. The cubic root of 320111434 is about 684.0697650646.

Adding to 320111434 its reverse (434111023), we get a palindrome (754222457).

The spelling of 320111434 in words is "three hundred twenty million, one hundred eleven thousand, four hundred thirty-four".