211111030230 has 64 divisors (see below), whose sum is σ = 508172797440. Its totient is φ = 56129158656.

The previous prime is 211111030217. The next prime is 211111030241. The reversal of 211111030230 is 32030111112.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 14633961 + ... + 14648379.

It is an arithmetic number, because the mean of its divisors is an integer number (7940199960).

Almost surely, 2^211111030230 is an apocalyptic number.

211111030230 is an abundant number, since it is smaller than the sum of its proper divisors (297061767210).

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

211111030230 is a wasteful number, since it uses less digits than its factorization.

211111030230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15845.

The product of its (nonzero) digits is 36, while the sum is 15.

Adding to 211111030230 its reverse (32030111112), we get a palindrome (243141141342).

The spelling of 211111030230 in words is "two hundred eleven billion, one hundred eleven million, thirty thousand, two hundred thirty".