423431365620 has 24 divisors (see below), whose sum is σ = 1185607823904. Its totient is φ = 112915030816.

The previous prime is 423431365601. The next prime is 423431365627. The reversal of 423431365620 is 26563134324.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (423431365627) 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, 3528594654 + ... + 3528594773.

It is an arithmetic number, because the mean of its divisors is an integer number (49400325996).

Almost surely, 2^423431365620 is an apocalyptic number.

It is an amenable number.

423431365620 is an abundant number, since it is smaller than the sum of its proper divisors (762176458284).

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

423431365620 is a wasteful number, since it uses less digits than its factorization.

423431365620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7057189439 (or 7057189437 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 39.

Adding to 423431365620 its reverse (26563134324), we get a palindrome (449994499944).

The spelling of 423431365620 in words is "four hundred twenty-three billion, four hundred thirty-one million, three hundred sixty-five thousand, six hundred twenty".