211131234330 has 64 divisors (see below), whose sum is σ = 514053527040. Its totient is φ = 55488835584.

The previous prime is 211131234329. The next prime is 211131234331. The reversal of 211131234330 is 33432131112.

It is an interprime number because it is at equal distance from previous prime (211131234329) and next prime (211131234331).

It is a self number, because there is not a number n which added to its sum of digits gives 211131234330.

It is not an unprimeable number, because it can be changed into a prime (211131234331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1240122 + ... + 1400058.

It is an arithmetic number, because the mean of its divisors is an integer number (8032086360).

Almost surely, 2^211131234330 is an apocalyptic number.

211131234330 is an abundant number, since it is smaller than the sum of its proper divisors (302922292710).

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

211131234330 is a wasteful number, since it uses less digits than its factorization.

211131234330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 160583.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 211131234330 its reverse (33432131112), we get a palindrome (244563365442).

The spelling of 211131234330 in words is "two hundred eleven billion, one hundred thirty-one million, two hundred thirty-four thousand, three hundred thirty".