210023232021 has 8 divisors (see below), whose sum is σ = 311145528960. Its totient is φ = 140015487996.

The previous prime is 210023232007. The next prime is 210023232043. The reversal of 210023232021 is 120232320012.

It is not a de Polignac number, because 210023232021 - 2⁵ = 210023231989 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 210023231985 and 210023232003.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210023232071) 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, 3889319085 + ... + 3889319138.

It is an arithmetic number, because the mean of its divisors is an integer number (38893191120).

Almost surely, 2^210023232021 is an apocalyptic number.

It is an amenable number.

210023232021 is a deficient number, since it is larger than the sum of its proper divisors (101122296939).

210023232021 is an equidigital number, since it uses as much as digits as its factorization.

210023232021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7778638232 (or 7778638226 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

Adding to 210023232021 its reverse (120232320012), we get a palindrome (330255552033).

The spelling of 210023232021 in words is "two hundred ten billion, twenty-three million, two hundred thirty-two thousand, twenty-one".