323420031 has 24 divisors (see below), whose sum is σ = 512475600. Its totient is φ = 194918400.

The previous prime is 323420023. The next prime is 323420047. The reversal of 323420031 is 130024323.

It is not a de Polignac number, because 323420031 - 2³ = 323420023 is a prime.

It is a super-2 number, since 2×323420031² = 209201032904081922, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 323419986 and 323420013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (323420051) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8895 + ... + 26943.

It is an arithmetic number, because the mean of its divisors is an integer number (21353150).

Almost surely, 2^323420031 is an apocalyptic number.

323420031 is a deficient number, since it is larger than the sum of its proper divisors (189055569).

323420031 is a wasteful number, since it uses less digits than its factorization.

323420031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18247 (or 18244 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

The square root of 323420031 is about 17983.8825340915. The cubic root of 323420031 is about 686.4184867040.

Adding to 323420031 its reverse (130024323), we get a palindrome (453444354).

The spelling of 323420031 in words is "three hundred twenty-three million, four hundred twenty thousand, thirty-one".