213533113144 has 64 divisors (see below), whose sum is σ = 432506874240. Its totient is φ = 98249289600.

The previous prime is 213533113141. The next prime is 213533113187. The reversal of 213533113144 is 441311335312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213533113141) 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, 55446819 + ... + 55450669.

It is an arithmetic number, because the mean of its divisors is an integer number (6757919910).

Almost surely, 2^213533113144 is an apocalyptic number.

It is an amenable number.

213533113144 is an abundant number, since it is smaller than the sum of its proper divisors (218973761096).

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

213533113144 is a wasteful number, since it uses less digits than its factorization.

213533113144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5380 (or 5376 counting only the distinct ones).

The product of its digits is 12960, while the sum is 31.

Adding to 213533113144 its reverse (441311335312), we get a palindrome (654844448456).

The spelling of 213533113144 in words is "two hundred thirteen billion, five hundred thirty-three million, one hundred thirteen thousand, one hundred forty-four".