503212111003 has 16 divisors (see below), whose sum is σ = 584252098560. Its totient is φ = 424495375200.

The previous prime is 503212110983. The next prime is 503212111079. The reversal of 503212111003 is 300111212305.

It is a cyclic number.

It is not a de Polignac number, because 503212111003 - 2⁹ = 503212110491 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (503212111903) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1290988 + ... + 1634953.

It is an arithmetic number, because the mean of its divisors is an integer number (36515756160).

Almost surely, 2^503212111003 is an apocalyptic number.

503212111003 is a deficient number, since it is larger than the sum of its proper divisors (81039987557).

503212111003 is a wasteful number, since it uses less digits than its factorization.

503212111003 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2926338.

The product of its (nonzero) digits is 180, while the sum is 19.

Adding to 503212111003 its reverse (300111212305), we get a palindrome (803323323308).

The spelling of 503212111003 in words is "five hundred three billion, two hundred twelve million, one hundred eleven thousand, three".