212321234134 has 16 divisors (see below), whose sum is σ = 321507370800. Its totient is φ = 105156726784.

The previous prime is 212321234119. The next prime is 212321234173. The reversal of 212321234134 is 431432123212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1061839 + ... + 1245850.

It is an arithmetic number, because the mean of its divisors is an integer number (20094210675).

Almost surely, 2^212321234134 is an apocalyptic number.

212321234134 is a deficient number, since it is larger than the sum of its proper divisors (109186136666).

212321234134 is a wasteful number, since it uses less digits than its factorization.

212321234134 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2308127.

The product of its digits is 6912, while the sum is 28.

Adding to 212321234134 its reverse (431432123212), we get a palindrome (643753357346).

The spelling of 212321234134 in words is "two hundred twelve billion, three hundred twenty-one million, two hundred thirty-four thousand, one hundred thirty-four".