213434004312 has 48 divisors (see below), whose sum is σ = 608474139000. Its totient is φ = 67400211456.

The previous prime is 213434004307. The next prime is 213434004341. The reversal of 213434004312 is 213400434312.

213434004312 is a `hidden beast` number, since 2 + 1 + 3 + 4 + 340 + 0 + 4 + 312 = 666.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 78008137 + ... + 78010872.

Almost surely, 2^213434004312 is an apocalyptic number.

It is an amenable number.

213434004312 is an abundant number, since it is smaller than the sum of its proper divisors (395040134688).

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

213434004312 is a wasteful number, since it uses less digits than its factorization.

213434004312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156019040 (or 156019033 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 27.

Adding to 213434004312 its reverse (213400434312), we get a palindrome (426834438624).

The spelling of 213434004312 in words is "two hundred thirteen billion, four hundred thirty-four million, four thousand, three hundred twelve".