501242303 has 4 divisors (see below), whose sum is σ = 503052120. Its totient is φ = 499432488.

The previous prime is 501242279. The next prime is 501242323. The reversal of 501242303 is 303242105.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 501242303 - 2⁶ = 501242239 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (501242323) 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, 904493 + ... + 905046.

It is an arithmetic number, because the mean of its divisors is an integer number (125763030).

Almost surely, 2^501242303 is an apocalyptic number.

501242303 is a deficient number, since it is larger than the sum of its proper divisors (1809817).

501242303 is a wasteful number, since it uses less digits than its factorization.

501242303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1809816.

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

The square root of 501242303 is about 22388.4412811611. The cubic root of 501242303 is about 794.3573266834.

Adding to 501242303 its reverse (303242105), we get a palindrome (804484408).

The spelling of 501242303 in words is "five hundred one million, two hundred forty-two thousand, three hundred three".