211023000 has 96 divisors (see below), whose sum is σ = 713288160. Its totient is φ = 56270400.

The previous prime is 211022993. The next prime is 211023049. The reversal of 211023000 is 320112.

It is a happy number.

211023000 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2724 + ... + 20723.

It is an arithmetic number, because the mean of its divisors is an integer number (7430085).

Almost surely, 2^211023000 is an apocalyptic number.

211023000 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211023000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (356644080).

211023000 is an abundant number, since it is smaller than the sum of its proper divisors (502265160).

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

211023000 is a wasteful number, since it uses less digits than its factorization.

211023000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23474 (or 23457 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 211023000 is about 14526.6307174100. The cubic root of 211023000 is about 595.3558119437.

Adding to 211023000 its reverse (320112), we get a palindrome (211343112).

The spelling of 211023000 in words is "two hundred eleven million, twenty-three thousand".