210023020 has 12 divisors (see below), whose sum is σ = 441048384. Its totient is φ = 84009200.

The previous prime is 210022993. The next prime is 210023039. The reversal of 210023020 is 20320012.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a junction number, because it is equal to n+sod(n) for n = 210022988 and 210023006.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5250556 + ... + 5250595.

It is an arithmetic number, because the mean of its divisors is an integer number (36754032).

Almost surely, 2^210023020 is an apocalyptic number.

210023020 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

210023020 is an abundant number, since it is smaller than the sum of its proper divisors (231025364).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

210023020 is a wasteful number, since it uses less digits than its factorization.

210023020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10501160 (or 10501158 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 10.

The square root of 210023020 is about 14492.1709898828. The cubic root of 210023020 is about 594.4139133849.

Adding to 210023020 its reverse (20320012), we get a palindrome (230343032).

The spelling of 210023020 in words is "two hundred ten million, twenty-three thousand, twenty".