213444433134 has 12 divisors (see below), whose sum is σ = 462462938496. Its totient is φ = 71148144372.

The previous prime is 213444433129. The next prime is 213444433141. The reversal of 213444433134 is 431334444312.

213444433134 is a `hidden beast` number, since 21 + 34 + 44 + 433 + 134 = 666.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5929012014 + ... + 5929012049.

It is an arithmetic number, because the mean of its divisors is an integer number (38538578208).

Almost surely, 2^213444433134 is an apocalyptic number.

213444433134 is an abundant number, since it is smaller than the sum of its proper divisors (249018505362).

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

213444433134 is a wasteful number, since it uses less digits than its factorization.

213444433134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11858024071 (or 11858024068 counting only the distinct ones).

The product of its digits is 165888, while the sum is 36.

Adding to 213444433134 its reverse (431334444312), we get a palindrome (644778877446).

The spelling of 213444433134 in words is "two hundred thirteen billion, four hundred forty-four million, four hundred thirty-three thousand, one hundred thirty-four".