211031016 has 64 divisors (see below), whose sum is σ = 608964480. Its totient is φ = 59692800.

The previous prime is 211030951. The next prime is 211031027. The reversal of 211031016 is 610130112.

It is a junction number, because it is equal to n+sod(n) for n = 211030986 and 211031004.

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, 10750 + ... + 23186.

It is an arithmetic number, because the mean of its divisors is an integer number (9515070).

Almost surely, 2^211031016 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 211031016, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (304482240).

211031016 is an abundant number, since it is smaller than the sum of its proper divisors (397933464).

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

211031016 is a wasteful number, since it uses less digits than its factorization.

211031016 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12554 (or 12550 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 15.

The square root of 211031016 is about 14526.9066218517. The cubic root of 211031016 is about 595.3633503191.

Adding to 211031016 its reverse (610130112), we get a palindrome (821161128).

The spelling of 211031016 in words is "two hundred eleven million, thirty-one thousand, sixteen".