213111130 has 8 divisors (see below), whose sum is σ = 383600052. Its totient is φ = 85244448.

The previous prime is 213111061. The next prime is 213111131. The reversal of 213111130 is 31111312.

It can be written as a sum of positive squares in 2 ways, for example, as 208196041 + 4915089 = 14429^2 + 2217^2 .

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 213111130.

It is not an unprimeable number, because it can be changed into a prime (213111131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10655547 + ... + 10655566.

Almost surely, 2^213111130 is an apocalyptic number.

213111130 is a deficient number, since it is larger than the sum of its proper divisors (170488922).

213111130 is a wasteful number, since it uses less digits than its factorization.

213111130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21311120.

The product of its (nonzero) digits is 18, while the sum is 13.

The square root of 213111130 is about 14598.3262739261. The cubic root of 213111130 is about 597.3131059990.

Adding to 213111130 its reverse (31111312), we get a palindrome (244222442).

The spelling of 213111130 in words is "two hundred thirteen million, one hundred eleven thousand, one hundred thirty".