210203231023 has 4 divisors (see below), whose sum is σ = 210425199480. Its totient is φ = 209981262568.

The previous prime is 210203231011. The next prime is 210203231039. The reversal of 210203231023 is 320132302012.

210203231023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

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 210203231023 - 2²¹ = 210201133871 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210203235023) 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, 110982808 + ... + 110984701.

It is an arithmetic number, because the mean of its divisors is an integer number (52606299870).

Almost surely, 2^210203231023 is an apocalyptic number.

210203231023 is a deficient number, since it is larger than the sum of its proper divisors (221968457).

210203231023 is an equidigital number, since it uses as much as digits as its factorization.

210203231023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 221968456.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 210203231023 its reverse (320132302012), we get a palindrome (530335533035).

The spelling of 210203231023 in words is "two hundred ten billion, two hundred three million, two hundred thirty-one thousand, twenty-three".