210231023 has 4 divisors (see below), whose sum is σ = 210327240. Its totient is φ = 210134808.

The previous prime is 210231013. The next prime is 210231053. The reversal of 210231023 is 320132012.

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 210231023 - 2⁸ = 210230767 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210230989 and 210231007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210231013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 44753 + ... + 49226.

It is an arithmetic number, because the mean of its divisors is an integer number (52581810).

Almost surely, 2^210231023 is an apocalyptic number.

210231023 is a deficient number, since it is larger than the sum of its proper divisors (96217).

210231023 is an equidigital number, since it uses as much as digits as its factorization.

210231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96216.

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

The square root of 210231023 is about 14499.3456059230. The cubic root of 210231023 is about 594.6100809015.

Adding to 210231023 its reverse (320132012), we get a palindrome (530363035).

The spelling of 210231023 in words is "two hundred ten million, two hundred thirty-one thousand, twenty-three".