320020311434 has 32 divisors (see below), whose sum is σ = 538923870720. Its totient is φ = 141630156288.

The previous prime is 320020311421. The next prime is 320020311463. The reversal of 320020311434 is 434113020023.

It is a super-2 number, since 2×320020311434² (a number of 24 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1719482 + ... + 1896485.

It is an arithmetic number, because the mean of its divisors is an integer number (16841370960).

Almost surely, 2^320020311434 is an apocalyptic number.

320020311434 is a gapful number since it is divisible by the number (34) formed by its first and last digit.

320020311434 is a deficient number, since it is larger than the sum of its proper divisors (218903559286).

320020311434 is a wasteful number, since it uses less digits than its factorization.

320020311434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3616142.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 320020311434 its reverse (434113020023), we get a palindrome (754133331457).

The spelling of 320020311434 in words is "three hundred twenty billion, twenty million, three hundred eleven thousand, four hundred thirty-four".