503123000366623 has 96 divisors (see below), whose sum is σ = 627501019571712. Its totient is φ = 394976209305600.

The previous prime is 503123000366587. The next prime is 503123000366641. The reversal of 503123000366623 is 326663000321305.

It is a de Polignac number, because none of the positive numbers 2^k-503123000366623 is a prime.

It is a super-3 number, since 3×503123000366623³ (a number of 45 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (503123000366123) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 100886903536 + ... + 100886908522.

It is an arithmetic number, because the mean of its divisors is an integer number (6536468953872).

Almost surely, 2^{503123000366623} is an apocalyptic number.

503123000366623 is a deficient number, since it is larger than the sum of its proper divisors (124378019205089).

503123000366623 is a wasteful number, since it uses less digits than its factorization.

503123000366623 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6465 (or 6452 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 40.

Adding to 503123000366623 its reverse (326663000321305), we get a palindrome (829786000687928).

The spelling of 503123000366623 in words is "five hundred three trillion, one hundred twenty-three billion, three hundred sixty-six thousand, six hundred twenty-three".