501011201 has 4 divisors (see below), whose sum is σ = 503258112. Its totient is φ = 498764292.

The previous prime is 501011177. The next prime is 501011213. The reversal of 501011201 is 102110105.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 102110105 = 5 ⋅20422021.

It is a cyclic number.

It is not a de Polignac number, because 501011201 - 2¹⁴ = 500994817 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (501011501) 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, 1123121 + ... + 1123566.

It is an arithmetic number, because the mean of its divisors is an integer number (125814528).

Almost surely, 2^501011201 is an apocalyptic number.

It is an amenable number.

501011201 is a deficient number, since it is larger than the sum of its proper divisors (2246911).

501011201 is a wasteful number, since it uses less digits than its factorization.

501011201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2246910.

The product of its (nonzero) digits is 10, while the sum is 11.

The square root of 501011201 is about 22383.2794960881. The cubic root of 501011201 is about 794.2352261967.

Adding to 501011201 its reverse (102110105), we get a palindrome (603121306).

The spelling of 501011201 in words is "five hundred one million, eleven thousand, two hundred one".