423113321 has 12 divisors (see below), whose sum is σ = 431579772. Its totient is φ = 414793728.

The previous prime is 423113269. The next prime is 423113347. The reversal of 423113321 is 123311324.

It can be written as a sum of positive squares in 6 ways, for example, as 48497296 + 374616025 = 6964^2 + 19355^2 .

It is a de Polignac number, because none of the positive numbers 2^k-423113321 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 423113293 and 423113302.

It is not an unprimeable number, because it can be changed into a prime (423110321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1815821 + ... + 1816053.

It is an arithmetic number, because the mean of its divisors is an integer number (35964981).

Almost surely, 2^423113321 is an apocalyptic number.

It is an amenable number.

423113321 is a deficient number, since it is larger than the sum of its proper divisors (8466451).

423113321 is an equidigital number, since it uses as much as digits as its factorization.

423113321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 620 (or 523 counting only the distinct ones).

The product of its digits is 432, while the sum is 20.

The square root of 423113321 is about 20569.7185445013. The cubic root of 423113321 is about 750.7331030316.

Adding to 423113321 its reverse (123311324), we get a palindrome (546424645).

The spelling of 423113321 in words is "four hundred twenty-three million, one hundred thirteen thousand, three hundred twenty-one".