423013 has 2 divisors, whose sum is σ = 423014. Its totient is φ = 423012.

The previous prime is 423001. The next prime is 423019. The reversal of 423013 is 310324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 294849 + 128164 = 543^2 + 358^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-423013 is a prime.

423013 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 422984 and 423002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (423019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211506 + 211507.

It is an arithmetic number, because the mean of its divisors is an integer number (211507).

2⁴²³⁰¹³ is an apocalyptic number.

It is an amenable number.

423013 is a deficient number, since it is larger than the sum of its proper divisors (1).

423013 is an equidigital number, since it uses as much as digits as its factorization.

423013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 423013 is about 650.3944956717. The cubic root of 423013 is about 75.0673764910.

Adding to 423013 its reverse (310324), we get a palindrome (733337).

The spelling of 423013 in words is "four hundred twenty-three thousand, thirteen".