2231123 has 4 divisors (see below), whose sum is σ = 2258088. Its totient is φ = 2204160.

The previous prime is 2231107. The next prime is 2231129. The reversal of 2231123 is 3211322.

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 2231123 - 2⁴ = 2231107 is a prime.

It is a super-3 number, since 3×2231123³ = 33318987415407773601, which contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2231098 and 2231107.

It is not an unprimeable number, because it can be changed into a prime (2231129) 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, 13358 + ... + 13523.

It is an arithmetic number, because the mean of its divisors is an integer number (564522).

2^2231123 is an apocalyptic number.

2231123 is a deficient number, since it is larger than the sum of its proper divisors (26965).

2231123 is an equidigital number, since it uses as much as digits as its factorization.

2231123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26964.

The product of its digits is 72, while the sum is 14.

The square root of 2231123 is about 1493.6944131917. The cubic root of 2231123 is about 130.6695827766.

Adding to 2231123 its reverse (3211322), we get a palindrome (5442445).

The spelling of 2231123 in words is "two million, two hundred thirty-one thousand, one hundred twenty-three".