213444412204134 has 32 divisors (see below), whose sum is σ = 427288212679680. Its totient is φ = 71081591821632.

The previous prime is 213444412204117. The next prime is 213444412204169. The reversal of 213444412204134 is 431402214444312.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 213444412204092 and 213444412204101.

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, 42302322 + ... + 47078394.

It is an arithmetic number, because the mean of its divisors is an integer number (13352756646240).

Almost surely, 2^{213444412204134} is an apocalyptic number.

213444412204134 is an abundant number, since it is smaller than the sum of its proper divisors (213843800475546).

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

213444412204134 is a wasteful number, since it uses less digits than its factorization.

213444412204134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4783044.

The product of its (nonzero) digits is 294912, while the sum is 39.

Adding to 213444412204134 its reverse (431402214444312), we get a palindrome (644846626648446).

The spelling of 213444412204134 in words is "two hundred thirteen trillion, four hundred forty-four billion, four hundred twelve million, two hundred four thousand, one hundred thirty-four".