211131001332 has 120 divisors (see below), whose sum is σ = 568059861600. Its totient is φ = 68350112064.

The previous prime is 211131001309. The next prime is 211131001349. The reversal of 211131001332 is 233100131112.

211131001332 is a `hidden beast` number, since 21 + 1 + 1 + 310 + 0 + 1 + 332 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 39 ways as a sum of consecutive naturals, for example, 1520094 + ... + 1653162.

It is an arithmetic number, because the mean of its divisors is an integer number (4733832180).

Almost surely, 2^211131001332 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 211131001332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (284029930800).

211131001332 is an abundant number, since it is smaller than the sum of its proper divisors (356928860268).

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

211131001332 is a wasteful number, since it uses less digits than its factorization.

211131001332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 133227 (or 133216 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 211131001332 its reverse (233100131112), we get a palindrome (444231132444).

The spelling of 211131001332 in words is "two hundred eleven billion, one hundred thirty-one million, one thousand, three hundred thirty-two".