423421043213 has 48 divisors (see below), whose sum is σ = 520853704704. Its totient is φ = 337091819520.

The previous prime is 423421043203. The next prime is 423421043237. The reversal of 423421043213 is 312340124324.

It is not a de Polignac number, because 423421043213 - 2³⁴ = 406241174029 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 (423421043203) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 47942708 + ... + 47951538.

It is an arithmetic number, because the mean of its divisors is an integer number (10851118848).

Almost surely, 2^423421043213 is an apocalyptic number.

It is an amenable number.

423421043213 is a deficient number, since it is larger than the sum of its proper divisors (97432661491).

423421043213 is a wasteful number, since it uses less digits than its factorization.

423421043213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9182 (or 9165 counting only the distinct ones).

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 423421043213 its reverse (312340124324), we get a palindrome (735761167537).

The spelling of 423421043213 in words is "four hundred twenty-three billion, four hundred twenty-one million, forty-three thousand, two hundred thirteen".