501003240023 has 16 divisors (see below), whose sum is σ = 589636768896. Its totient is φ = 419675478240.

The previous prime is 501003239917. The next prime is 501003240047. The reversal of 501003240023 is 320042300105.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 501003240023 - 2¹⁶ = 501003174487 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 501003239977 and 501003240004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501003240623) 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, 3030965 + ... + 3191982.

It is an arithmetic number, because the mean of its divisors is an integer number (36852298056).

Almost surely, 2^501003240023 is an apocalyptic number.

501003240023 is a deficient number, since it is larger than the sum of its proper divisors (88633528873).

501003240023 is a wasteful number, since it uses less digits than its factorization.

501003240023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6223534.

The product of its (nonzero) digits is 720, while the sum is 20.

Adding to 501003240023 its reverse (320042300105), we get a palindrome (821045540128).

The spelling of 501003240023 in words is "five hundred one billion, three million, two hundred forty thousand, twenty-three".