211531635132 has 24 divisors (see below), whose sum is σ = 494247197136. Its totient is φ = 70414347648.

The previous prime is 211531635097. The next prime is 211531635151. The reversal of 211531635132 is 231536135112.

It is a junction number, because it is equal to n+sod(n) for n = 211531635093 and 211531635102.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12015513 + ... + 12033104.

It is an arithmetic number, because the mean of its divisors is an integer number (20593633214).

Almost surely, 2^211531635132 is an apocalyptic number.

It is an amenable number.

211531635132 is an abundant number, since it is smaller than the sum of its proper divisors (282715562004).

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

211531635132 is a wasteful number, since it uses less digits than its factorization.

211531635132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24049357 (or 24049355 counting only the distinct ones).

The product of its digits is 16200, while the sum is 33.

The spelling of 211531635132 in words is "two hundred eleven billion, five hundred thirty-one million, six hundred thirty-five thousand, one hundred thirty-two".