503601124321 has 4 divisors (see below), whose sum is σ = 503612838144. Its totient is φ = 503589410500.

The previous prime is 503601124307. The next prime is 503601124361. The reversal of 503601124321 is 123421106305.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 503601124321 - 2²⁵ = 503567569889 is a prime.

It is a super-2 number, since 2×503601124321² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 503601124321.

It is not an unprimeable number, because it can be changed into a prime (503601124361) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5792185 + ... + 5878486.

It is an arithmetic number, because the mean of its divisors is an integer number (125903209536).

Almost surely, 2^503601124321 is an apocalyptic number.

It is an amenable number.

503601124321 is a deficient number, since it is larger than the sum of its proper divisors (11713823).

503601124321 is a wasteful number, since it uses less digits than its factorization.

503601124321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11713822.

The product of its (nonzero) digits is 4320, while the sum is 28.

The spelling of 503601124321 in words is "five hundred three billion, six hundred one million, one hundred twenty-four thousand, three hundred twenty-one".