501120001 has 8 divisors (see below), whose sum is σ = 509668704. Its totient is φ = 492602880.

The previous prime is 501119977. The next prime is 501120019. The reversal of 501120001 is 100021105.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 501120001 - 2⁷ = 501119873 is a prime.

It is a super-2 number, since 2×501120001² = 502242510804480002, which 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 501120001.

It is not an unprimeable number, because it can be changed into a prime (501120031) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 25281 + ... + 40513.

It is an arithmetic number, because the mean of its divisors is an integer number (63708588).

Almost surely, 2^501120001 is an apocalyptic number.

It is an amenable number.

501120001 is a deficient number, since it is larger than the sum of its proper divisors (8548703).

501120001 is a wasteful number, since it uses less digits than its factorization.

501120001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15791.

The product of its (nonzero) digits is 10, while the sum is 10.

The square root of 501120001 is about 22385.7097497488. The cubic root of 501120001 is about 794.2927142915.

Adding to 501120001 its reverse (100021105), we get a palindrome (601141106).

The spelling of 501120001 in words is "five hundred one million, one hundred twenty thousand, one".