423021013 has 8 divisors (see below), whose sum is σ = 448089408. Its totient is φ = 397973184.

The previous prime is 423020993. The next prime is 423021019. The reversal of 423021013 is 310120324.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 423021013 - 2⁵ = 423020981 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423021019) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 63520 + ... + 69862.

It is an arithmetic number, because the mean of its divisors is an integer number (56011176).

Almost surely, 2^423021013 is an apocalyptic number.

It is an amenable number.

423021013 is a deficient number, since it is larger than the sum of its proper divisors (25068395).

423021013 is a wasteful number, since it uses less digits than its factorization.

423021013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10283.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 423021013 is about 20567.4746383702. The cubic root of 423021013 is about 750.6785048047.

Adding to 423021013 its reverse (310120324), we get a palindrome (733141337).

The spelling of 423021013 in words is "four hundred twenty-three million, twenty-one thousand, thirteen".