323040523 has 4 divisors (see below), whose sum is σ = 347889808. Its totient is φ = 298191240.

The previous prime is 323040479. The next prime is 323040551. The reversal of 323040523 is 325040323.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-323040523 is a prime.

It is a super-2 number, since 2×323040523² = 208710359000227058, 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 = 323040494 and 323040503.

It is not an unprimeable number, because it can be changed into a prime (323040583) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12424623 + ... + 12424648.

It is an arithmetic number, because the mean of its divisors is an integer number (86972452).

Almost surely, 2^323040523 is an apocalyptic number.

323040523 is a deficient number, since it is larger than the sum of its proper divisors (24849285).

323040523 is a wasteful number, since it uses less digits than its factorization.

323040523 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 24849284.

The product of its (nonzero) digits is 2160, while the sum is 22.

The square root of 323040523 is about 17973.3281002712. The cubic root of 323040523 is about 686.1498955623.

Adding to 323040523 its reverse (325040323), we get a palindrome (648080846).

The spelling of 323040523 in words is "three hundred twenty-three million, forty thousand, five hundred twenty-three".