211300230021 has 8 divisors (see below), whose sum is σ = 282443298144. Its totient is φ = 140511990960.

The previous prime is 211300230019. The next prime is 211300230061. The reversal of 211300230021 is 120032003112.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 211300230021 - 2¹ = 211300230019 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211300230061) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 88705875 + ... + 88708256.

It is an arithmetic number, because the mean of its divisors is an integer number (35305412268).

Almost surely, 2^211300230021 is an apocalyptic number.

It is an amenable number.

211300230021 is a deficient number, since it is larger than the sum of its proper divisors (71143068123).

211300230021 is a wasteful number, since it uses less digits than its factorization.

211300230021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177414531.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 211300230021 its reverse (120032003112), we get a palindrome (331332233133).

The spelling of 211300230021 in words is "two hundred eleven billion, three hundred million, two hundred thirty thousand, twenty-one".