210020448023 has 4 divisors (see below), whose sum is σ = 210054073680. Its totient is φ = 209986822368.

The previous prime is 210020448019. The next prime is 210020448031. The reversal of 210020448023 is 320844020012.

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 210020448023 - 2² = 210020448019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 210020447983 and 210020448001.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (210020448083) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16803458 + ... + 16815951.

It is an arithmetic number, because the mean of its divisors is an integer number (52513518420).

Almost surely, 2^210020448023 is an apocalyptic number.

210020448023 is a deficient number, since it is larger than the sum of its proper divisors (33625657).

210020448023 is an equidigital number, since it uses as much as digits as its factorization.

210020448023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33625656.

The product of its (nonzero) digits is 3072, while the sum is 26.

Adding to 210020448023 its reverse (320844020012), we get a palindrome (530864468035).

The spelling of 210020448023 in words is "two hundred ten billion, twenty million, four hundred forty-eight thousand, twenty-three".