231320023 has 8 divisors (see below), whose sum is σ = 252777600. Its totient is φ = 209933880.

The previous prime is 231320021. The next prime is 231320027. The reversal of 231320023 is 320023132.

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

It is a cyclic number.

It is not a de Polignac number, because 231320023 - 2¹ = 231320021 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 231319979 and 231320006.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231320021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10965 + ... + 24142.

It is an arithmetic number, because the mean of its divisors is an integer number (31597200).

Almost surely, 2^231320023 is an apocalyptic number.

231320023 is a deficient number, since it is larger than the sum of its proper divisors (21457577).

231320023 is a wasteful number, since it uses less digits than its factorization.

231320023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 35717.

The product of its (nonzero) digits is 216, while the sum is 16.

The square root of 231320023 is about 15209.2084935410. The cubic root of 231320023 is about 613.8624602181.

Adding to 231320023 its reverse (320023132), we get a palindrome (551343155).

The spelling of 231320023 in words is "two hundred thirty-one million, three hundred twenty thousand, twenty-three".