211312032 has 96 divisors (see below), whose sum is σ = 583982784. Its totient is φ = 66816000.

The previous prime is 211311983. The next prime is 211312043. The reversal of 211312032 is 230213112.

It is a tau number, because it is divible by the number of its divisors (96).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 144907 + ... + 146357.

It is an arithmetic number, because the mean of its divisors is an integer number (6083154).

Almost surely, 2^211312032 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211312032, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (291991392).

211312032 is an abundant number, since it is smaller than the sum of its proper divisors (372670752).

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

211312032 is a wasteful number, since it uses less digits than its factorization.

211312032 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1542 (or 1534 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 211312032 is about 14536.5756627894. The cubic root of 211312032 is about 595.6275017246.

Adding to 211312032 its reverse (230213112), we get a palindrome (441525144).

The spelling of 211312032 in words is "two hundred eleven million, three hundred twelve thousand, thirty-two".