211020031332 has 120 divisors (see below), whose sum is σ = 608560555680. Its totient is φ = 63226880640.

The previous prime is 211020031267. The next prime is 211020031349. The reversal of 211020031332 is 233130020112.

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

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, 15438 + ... + 649829.

It is an arithmetic number, because the mean of its divisors is an integer number (5071337964).

Almost surely, 2^211020031332 is an apocalyptic number.

211020031332 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 211020031332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304280277840).

211020031332 is an abundant number, since it is smaller than the sum of its proper divisors (397540524348).

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

211020031332 is a wasteful number, since it uses less digits than its factorization.

211020031332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 665383 (or 665372 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 211020031332 its reverse (233130020112), we get a palindrome (444150051444).

The spelling of 211020031332 in words is "two hundred eleven billion, twenty million, thirty-one thousand, three hundred thirty-two".