423423303420 has 48 divisors (see below), whose sum is σ = 1276784117280. Its totient is φ = 104227274496.

The previous prime is 423423303383. The next prime is 423423303427. The reversal of 423423303420 is 24303324324.

It is a Harshad number since it is a multiple of its sum of digits (30).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423423303427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 271424415 + ... + 271425974.

It is an arithmetic number, because the mean of its divisors is an integer number (26599669110).

Almost surely, 2^423423303420 is an apocalyptic number.

It is an amenable number.

423423303420 is an abundant number, since it is smaller than the sum of its proper divisors (853360813860).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

423423303420 is a wasteful number, since it uses less digits than its factorization.

423423303420 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 542850414 (or 542850412 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 30.

Adding to 423423303420 its reverse (24303324324), we get a palindrome (447726627744).

The spelling of 423423303420 in words is "four hundred twenty-three billion, four hundred twenty-three million, three hundred three thousand, four hundred twenty".