423512020500 has 96 divisors (see below), whose sum is σ = 1233701134848. Its totient is φ = 112896784000.

The previous prime is 423512020457. The next prime is 423512020523. The reversal of 423512020500 is 5020215324.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4342270 + ... + 4438730.

It is an arithmetic number, because the mean of its divisors is an integer number (12851053488).

Almost surely, 2^423512020500 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 423512020500, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (616850567424).

423512020500 is an abundant number, since it is smaller than the sum of its proper divisors (810189114348).

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

423512020500 is a wasteful number, since it uses less digits than its factorization.

423512020500 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 99410 (or 99398 counting only the distinct ones).

The product of its (nonzero) digits is 2400, while the sum is 24.

Adding to 423512020500 its reverse (5020215324), we get a palindrome (428532235824).

The spelling of 423512020500 in words is "four hundred twenty-three billion, five hundred twelve million, twenty thousand, five hundred".