211031030 has 32 divisors (see below), whose sum is σ = 459660096. Its totient is φ = 68097024.

The previous prime is 211031027. The next prime is 211031033. The reversal of 211031030 is 30130112.

211031030 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (211031027) and next prime (211031033).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (211031033) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 87479 + ... + 89858.

It is an arithmetic number, because the mean of its divisors is an integer number (14364378).

Almost surely, 2^211031030 is an apocalyptic number.

211031030 is an abundant number, since it is smaller than the sum of its proper divisors (248629066).

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

211031030 is a wasteful number, since it uses less digits than its factorization.

211031030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 177368.

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 211031030 is about 14526.9071037162. The cubic root of 211031030 is about 595.3633634848.

Adding to 211031030 its reverse (30130112), we get a palindrome (241161142).

The spelling of 211031030 in words is "two hundred eleven million, thirty-one thousand, thirty".