211143130 has 32 divisors (see below), whose sum is σ = 420811200. Its totient is φ = 75630720.

The previous prime is 211143109. The next prime is 211143131. The reversal of 211143130 is 31341112.

It is not an unprimeable number, because it can be changed into a prime (211143131) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6955 + ... + 21694.

It is an arithmetic number, because the mean of its divisors is an integer number (13150350).

Almost surely, 2^211143130 is an apocalyptic number.

211143130 is a deficient number, since it is larger than the sum of its proper divisors (209668070).

211143130 is a wasteful number, since it uses less digits than its factorization.

211143130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28734.

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 211143130 is about 14530.7649488938. The cubic root of 211143130 is about 595.4687641282.

Adding to 211143130 its reverse (31341112), we get a palindrome (242484242).

It can be divided in two parts, 211 and 143130, that added together give a palindrome (143341).

The spelling of 211143130 in words is "two hundred eleven million, one hundred forty-three thousand, one hundred thirty".