211031212213230 has 32 divisors (see below), whose sum is σ = 518253395577984. Its totient is φ = 54966269227296.

The previous prime is 211031212213193. The next prime is 211031212213379. The reversal of 211031212213230 is 32312212130112.

It is a self number, because there is not a number n which added to its sum of digits gives 211031212213230.

It is a congruent number.

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, 81795042204 + ... + 81795044783.

It is an arithmetic number, because the mean of its divisors is an integer number (16195418611812).

Almost surely, 2^{211031212213230} is an apocalyptic number.

211031212213230 is an abundant number, since it is smaller than the sum of its proper divisors (307222183364754).

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

211031212213230 is a wasteful number, since it uses less digits than its factorization.

211031212213230 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163590087040.

The product of its (nonzero) digits is 864, while the sum is 24.

Adding to 211031212213230 its reverse (32312212130112), we get a palindrome (243343424343342).

The spelling of 211031212213230 in words is "two hundred eleven trillion, thirty-one billion, two hundred twelve million, two hundred thirteen thousand, two hundred thirty".