211231030 has 8 divisors (see below), whose sum is σ = 380215872. Its totient is φ = 84492408.

The previous prime is 211230997. The next prime is 211231049. The reversal of 211231030 is 30132112.

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

It is a self number, because there is not a number n which added to its sum of digits gives 211231030.

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 3 ways as a sum of consecutive naturals, for example, 10561542 + ... + 10561561.

It is an arithmetic number, because the mean of its divisors is an integer number (47526984).

Almost surely, 2^211231030 is an apocalyptic number.

211231030 is a deficient number, since it is larger than the sum of its proper divisors (168984842).

211231030 is a wasteful number, since it uses less digits than its factorization.

211231030 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21123110.

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 211231030 is about 14533.7892512586. The cubic root of 211231030 is about 595.5513849277.

Adding to 211231030 its reverse (30132112), we get a palindrome (241363142).

The spelling of 211231030 in words is "two hundred eleven million, two hundred thirty-one thousand, thirty".