211230051 has 8 divisors (see below), whose sum is σ = 282313920. Its totient is φ = 140483112.

The previous prime is 211230043. The next prime is 211230053. The reversal of 211230051 is 150032112.

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

It is not a de Polignac number, because 211230051 - 2³ = 211230043 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 211230051.

It is not an unprimeable number, because it can be changed into a prime (211230053) 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, 82765 + ... + 85278.

It is an arithmetic number, because the mean of its divisors is an integer number (35289240).

Almost surely, 2^211230051 is an apocalyptic number.

211230051 is a deficient number, since it is larger than the sum of its proper divisors (71083869).

211230051 is a wasteful number, since it uses less digits than its factorization.

211230051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 168465.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 211230051 is about 14533.7555710835. The cubic root of 211230051 is about 595.5504648519.

Adding to 211230051 its reverse (150032112), we get a palindrome (361262163).

The spelling of 211230051 in words is "two hundred eleven million, two hundred thirty thousand, fifty-one".