503454021443320 has 16 divisors (see below), whose sum is σ = 1132771548247560. Its totient is φ = 201381608577312.

The previous prime is 503454021443249. The next prime is 503454021443333. The reversal of 503454021443320 is 23344120454305.

It is a Harshad number since it is a multiple of its sum of digits (40), and also a Moran number because the ratio is a prime number: 12586350536083 = 503454021443320 / (5 + 0 + 3 + 4 + 5 + 4 + 0 + 2 + 1 + 4 + 4 + 3 + 3 + 2 + 0).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 6293175268002 + ... + 6293175268081.

Almost surely, 2^{503454021443320} is an apocalyptic number.

It is an amenable number.

503454021443320 is an abundant number, since it is smaller than the sum of its proper divisors (629317526804240).

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

503454021443320 is a wasteful number, since it uses less digits than its factorization.

503454021443320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12586350536094 (or 12586350536090 counting only the distinct ones).

The product of its (nonzero) digits is 691200, while the sum is 40.

Adding to 503454021443320 its reverse (23344120454305), we get a palindrome (526798141897625).

The spelling of 503454021443320 in words is "five hundred three trillion, four hundred fifty-four billion, twenty-one million, four hundred forty-three thousand, three hundred twenty".