320034323021 has 16 divisors (see below), whose sum is σ = 387368565120. Its totient is φ = 258112189440.

The previous prime is 320034322921. The next prime is 320034323027. The reversal of 320034323021 is 120323430023.

It is not a de Polignac number, because 320034323021 - 2¹⁴ = 320034306637 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320034323027) 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, 117026 + ... + 808556.

It is an arithmetic number, because the mean of its divisors is an integer number (24210535320).

Almost surely, 2^320034323021 is an apocalyptic number.

It is an amenable number.

320034323021 is a deficient number, since it is larger than the sum of its proper divisors (67334242099).

320034323021 is a wasteful number, since it uses less digits than its factorization.

320034323021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 695444.

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 320034323021 its reverse (120323430023), we get a palindrome (440357753044).

The spelling of 320034323021 in words is "three hundred twenty billion, thirty-four million, three hundred twenty-three thousand, twenty-one".