10018231 has 4 divisors (see below), whose sum is σ = 10289032. Its totient is φ = 9747432.

The previous prime is 10018223. The next prime is 10018247. The reversal of 10018231 is 13281001.

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 10018231 - 2³ = 10018223 is a prime.

It is a super-2 number, since 2×10018231² = 200729904738722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10018201) 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, 135345 + ... + 135418.

It is an arithmetic number, because the mean of its divisors is an integer number (2572258).

Almost surely, 2^10018231 is an apocalyptic number.

10018231 is a deficient number, since it is larger than the sum of its proper divisors (270801).

10018231 is an equidigital number, since it uses as much as digits as its factorization.

10018231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 270800.

The product of its (nonzero) digits is 48, while the sum is 16.

The square root of 10018231 is about 3165.1589217605. The cubic root of 10018231 is about 215.5743145167.

Adding to 10018231 its reverse (13281001), we get a palindrome (23299232).

The spelling of 10018231 in words is "ten million, eighteen thousand, two hundred thirty-one".