2231031 has 8 divisors (see below), whose sum is σ = 3245184. Its totient is φ = 1352120.

The previous prime is 2231027. The next prime is 2231051. The reversal of 2231031 is 1301322.

It is a happy number.

2231031 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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

It is not a de Polignac number, because 2231031 - 2² = 2231027 is a prime.

It is a super-3 number, since 3×2231031³ = 33314865876015008373, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a junction number, because it is equal to n+sod(n) for n = 2230998 and 2231016.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2231011) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33771 + ... + 33836.

It is an arithmetic number, because the mean of its divisors is an integer number (405648).

2^2231031 is an apocalyptic number.

2231031 is a deficient number, since it is larger than the sum of its proper divisors (1014153).

2231031 is a wasteful number, since it uses less digits than its factorization.

2231031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67621.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 2231031 is about 1493.6636167491. The cubic root of 2231031 is about 130.6677867054.

Adding to 2231031 its reverse (1301322), we get a palindrome (3532353).

The spelling of 2231031 in words is "two million, two hundred thirty-one thousand, thirty-one".