423013043 has 4 divisors (see below), whose sum is σ = 423896640. Its totient is φ = 422129448.

The previous prime is 423013039. The next prime is 423013099. The reversal of 423013043 is 340310324.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 423013043 - 2² = 423013039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (423013013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 441080 + ... + 442037.

It is an arithmetic number, because the mean of its divisors is an integer number (105974160).

Almost surely, 2^423013043 is an apocalyptic number.

423013043 is a deficient number, since it is larger than the sum of its proper divisors (883597).

423013043 is an equidigital number, since it uses as much as digits as its factorization.

423013043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 883596.

The product of its (nonzero) digits is 864, while the sum is 20.

The square root of 423013043 is about 20567.2808849396. The cubic root of 423013043 is about 750.6737903460.

Adding to 423013043 its reverse (340310324), we get a palindrome (763323367).

The spelling of 423013043 in words is "four hundred twenty-three million, thirteen thousand, forty-three".