213113244344 has 64 divisors (see below), whose sum is σ = 536508887040. Its totient is φ = 76644120960.

The previous prime is 213113244307. The next prime is 213113244373. The reversal of 213113244344 is 443442311312.

It is a self number, because there is not a number n which added to its sum of digits gives 213113244344.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 13298264 + ... + 13314279.

It is an arithmetic number, because the mean of its divisors is an integer number (8382951360).

Almost surely, 2^213113244344 is an apocalyptic number.

It is an amenable number.

213113244344 is an abundant number, since it is smaller than the sum of its proper divisors (323395642696).

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

213113244344 is a wasteful number, since it uses less digits than its factorization.

213113244344 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 26612580 (or 26612576 counting only the distinct ones).

The product of its digits is 27648, while the sum is 32.

Adding to 213113244344 its reverse (443442311312), we get a palindrome (656555555656).

The spelling of 213113244344 in words is "two hundred thirteen billion, one hundred thirteen million, two hundred forty-four thousand, three hundred forty-four".