320545023 has 8 divisors (see below), whose sum is σ = 438944688. Its totient is φ = 207921024.

The previous prime is 320545009. The next prime is 320545031.

320545023 is nontrivially palindromic in base 10.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 320545023 - 2¹⁴ = 320528639 is a prime.

It is a super-2 number, since 2×320545023² = 205498223540141058, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 320544984 and 320545002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (320540023) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1443786 + ... + 1444007.

It is an arithmetic number, because the mean of its divisors is an integer number (54868086).

Almost surely, 2^320545023 is an apocalyptic number.

320545023 is a deficient number, since it is larger than the sum of its proper divisors (118399665).

320545023 is a wasteful number, since it uses less digits than its factorization.

320545023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2887833.

The product of its (nonzero) digits is 3600, while the sum is 24.

The square root of 320545023 is about 17903.7711949187. The cubic root of 320545023 is about 684.3784818405.

The spelling of 320545023 in words is "three hundred twenty million, five hundred forty-five thousand, twenty-three".