211131030 has 64 divisors (see below), whose sum is σ = 576834048. Its totient is φ = 48956160.

The previous prime is 211131029. The next prime is 211131061. The reversal of 211131030 is 30131112.

211131030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a junction number, because it is equal to n+sod(n) for n = 211130997 and 211131015.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 6319 + ... + 21498.

It is an arithmetic number, because the mean of its divisors is an integer number (9013032).

Almost surely, 2^211131030 is an apocalyptic number.

211131030 is an abundant number, since it is smaller than the sum of its proper divisors (365703018).

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

211131030 is a wasteful number, since it uses less digits than its factorization.

211131030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27861.

The product of its (nonzero) digits is 18, while the sum is 12.

The square root of 211131030 is about 14530.3485849445. The cubic root of 211131030 is about 595.4573890487.

Adding to 211131030 its reverse (30131112), we get a palindrome (241262142).

The spelling of 211131030 in words is "two hundred eleven million, one hundred thirty-one thousand, thirty".