213111012312044 has 24 divisors (see below), whose sum is σ = 464969481408768. Its totient is φ = 83030264537040.

The previous prime is 213111012311963. The next prime is 213111012312047. The reversal of 213111012312044 is 440213210111312.

It is a happy number.

It is not an unprimeable number, because it can be changed into a prime (213111012312047) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 345959435264 + ... + 345959435879.

It is an arithmetic number, because the mean of its divisors is an integer number (19373728392032).

Almost surely, 2^{213111012312044} is an apocalyptic number.

It is an amenable number.

213111012312044 is an abundant number, since it is smaller than the sum of its proper divisors (251858469096724).

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

213111012312044 is a wasteful number, since it uses less digits than its factorization.

213111012312044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 691918871165 (or 691918871163 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 26.

Adding to 213111012312044 its reverse (440213210111312), we get a palindrome (653324222423356).

The spelling of 213111012312044 in words is "two hundred thirteen trillion, one hundred eleven billion, twelve million, three hundred twelve thousand, forty-four".