423121 has 2 divisors, whose sum is σ = 423122. Its totient is φ = 423120.

The previous prime is 423109. The next prime is 423127. The reversal of 423121 is 121324.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 230400 + 192721 = 480^2 + 439^2 .

It is a cyclic number.

It is not a de Polignac number, because 423121 - 2¹³ = 414929 is a prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (423127) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 211560 + 211561.

It is an arithmetic number, because the mean of its divisors is an integer number (211561).

2⁴²³¹²¹ is an apocalyptic number.

It is an amenable number.

423121 is a deficient number, since it is larger than the sum of its proper divisors (1).

423121 is an equidigital number, since it uses as much as digits as its factorization.

423121 is an evil number, because the sum of its binary digits is even.

The product of its digits is 48, while the sum is 13.

The square root of 423121 is about 650.4775169058. The cubic root of 423121 is about 75.0737644640.

Adding to 423121 its reverse (121324), we get a palindrome (544445).

The spelling of 423121 in words is "four hundred twenty-three thousand, one hundred twenty-one", and thus it is an iban number.