213111160 has 32 divisors (see below), whose sum is σ = 489706560. Its totient is φ = 83430016.

The previous prime is 213111149. The next prime is 213111161. The reversal of 213111160 is 61111312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213111161) 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, 54799 + ... + 58558.

It is an arithmetic number, because the mean of its divisors is an integer number (15303330).

Almost surely, 2^213111160 is an apocalyptic number.

213111160 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213111160 is an abundant number, since it is smaller than the sum of its proper divisors (276595400).

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

213111160 is a wasteful number, since it uses less digits than its factorization.

213111160 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 113415 (or 113411 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 16.

The square root of 213111160 is about 14598.3273014411. The cubic root of 213111160 is about 597.3131340272.

Adding to 213111160 its reverse (61111312), we get a palindrome (274222472).

The spelling of 213111160 in words is "two hundred thirteen million, one hundred eleven thousand, one hundred sixty".