503213542000 has 320 divisors, whose sum is σ = 1358413056000. Its totient is φ = 179084390400.

The previous prime is 503213541907. The next prime is 503213542001. The reversal of 503213542000 is 245312305.

It is a Harshad number since it is a multiple of its sum of digits (25).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503213542001) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 104855601 + ... + 104860399.

It is an arithmetic number, because the mean of its divisors is an integer number (4245040800).

Almost surely, 2^503213542000 is an apocalyptic number.

503213542000 is a gapful number since it is divisible by the number (50) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 503213542000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (679206528000).

503213542000 is an abundant number, since it is smaller than the sum of its proper divisors (855199514000).

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

503213542000 is a wasteful number, since it uses less digits than its factorization.

503213542000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4981 (or 4965 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 25.

Adding to 503213542000 its reverse (245312305), we get a palindrome (503458854305).

The spelling of 503213542000 in words is "five hundred three billion, two hundred thirteen million, five hundred forty-two thousand".