323440523 has 12 divisors (see below), whose sum is σ = 376540632. Its totient is φ = 277018560.

The previous prime is 323440519. The next prime is 323440543. The reversal of 323440523 is 325044323.

It is not a de Polignac number, because 323440523 - 2² = 323440519 is a prime.

It is a super-2 number, since 2×323440523² = 209227543837027058, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 323440492 and 323440501.

It is not an unprimeable number, because it can be changed into a prime (323440543) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 117068 + ... + 119798.

It is an arithmetic number, because the mean of its divisors is an integer number (31378386).

Almost surely, 2^323440523 is an apocalyptic number.

323440523 is a deficient number, since it is larger than the sum of its proper divisors (53100109).

323440523 is a wasteful number, since it uses less digits than its factorization.

323440523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5162 (or 5155 counting only the distinct ones).

The product of its (nonzero) digits is 8640, while the sum is 26.

The square root of 323440523 is about 17984.4522574361. The cubic root of 323440523 is about 686.4329836318.

Adding to 323440523 its reverse (325044323), we get a palindrome (648484846).

The spelling of 323440523 in words is "three hundred twenty-three million, four hundred forty thousand, five hundred twenty-three".