503344123221 has 8 divisors (see below), whose sum is σ = 706447892320. Its totient is φ = 317901551472.

The previous prime is 503344123211. The next prime is 503344123273. The reversal of 503344123221 is 122321443305.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 503344123221 - 2⁵ = 503344123189 is a prime.

It is a super-2 number, since 2×503344123221² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503344123211) 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, 4415299270 + ... + 4415299383.

It is an arithmetic number, because the mean of its divisors is an integer number (88305986540).

Almost surely, 2^503344123221 is an apocalyptic number.

It is an amenable number.

503344123221 is a deficient number, since it is larger than the sum of its proper divisors (203103769099).

503344123221 is a wasteful number, since it uses less digits than its factorization.

503344123221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8830598675.

The product of its (nonzero) digits is 17280, while the sum is 30.

Adding to 503344123221 its reverse (122321443305), we get a palindrome (625665566526).

The spelling of 503344123221 in words is "five hundred three billion, three hundred forty-four million, one hundred twenty-three thousand, two hundred twenty-one".