2320231 has 4 divisors (see below), whose sum is σ = 2376864. Its totient is φ = 2263600.

The previous prime is 2320207. The next prime is 2320243. The reversal of 2320231 is 1320232.

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 2320231 - 2¹⁵ = 2287463 is a prime.

It is a super-2 number, since 2×2320231² = 10766943786722, which contains 22 as substring.

It is an Ulam number.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2320291) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28255 + ... + 28336.

It is an arithmetic number, because the mean of its divisors is an integer number (594216).

2^2320231 is an apocalyptic number.

2320231 is a deficient number, since it is larger than the sum of its proper divisors (56633).

2320231 is an equidigital number, since it uses as much as digits as its factorization.

2320231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 56632.

The product of its (nonzero) digits is 72, while the sum is 13.

The square root of 2320231 is about 1523.2304487503. The cubic root of 2320231 is about 132.3865125316.

Adding to 2320231 its reverse (1320232), we get a palindrome (3640463).

Subtracting from 2320231 its reverse (1320232), we obtain a palindrome (999999).

The spelling of 2320231 in words is "two million, three hundred twenty thousand, two hundred thirty-one".