424140323 has 2 divisors, whose sum is σ = 424140324. Its totient is φ = 424140322.

The previous prime is 424140317. The next prime is 424140337. The reversal of 424140323 is 323041424.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 424140323 - 2¹⁶ = 424074787 is a prime.

It is not a weakly prime, because it can be changed into another prime (424140313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212070161 + 212070162.

It is an arithmetic number, because the mean of its divisors is an integer number (212070162).

Almost surely, 2^424140323 is an apocalyptic number.

424140323 is a deficient number, since it is larger than the sum of its proper divisors (1).

424140323 is an equidigital number, since it uses as much as digits as its factorization.

424140323 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

The square root of 424140323 is about 20594.6673437567. The cubic root of 424140323 is about 751.3400180061.

Adding to 424140323 its reverse (323041424), we get a palindrome (747181747).

The spelling of 424140323 in words is "four hundred twenty-four million, one hundred forty thousand, three hundred twenty-three".