213001110 has 128 divisors (see below), whose sum is σ = 653184000. Its totient is φ = 48384000.

The previous prime is 213001073. The next prime is 213001121. The reversal of 213001110 is 11100312.

It is a super-2 number, since 2×213001110² = 90738945722464200, which contains 22 as substring.

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

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213001092 and 213001101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 474166 + ... + 474614.

It is an arithmetic number, because the mean of its divisors is an integer number (5103000).

Almost surely, 2^213001110 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213001110, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (326592000).

213001110 is an abundant number, since it is smaller than the sum of its proper divisors (440182890).

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

213001110 is a wasteful number, since it uses less digits than its factorization.

213001110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 723 (or 717 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 9.

The square root of 213001110 is about 14594.5575472503. The cubic root of 213001110 is about 597.2102993866.

Adding to 213001110 its reverse (11100312), we get a palindrome (224101422).

The spelling of 213001110 in words is "two hundred thirteen million, one thousand, one hundred ten".