212322134243 has 8 divisors (see below), whose sum is σ = 221566279200. Its totient is φ = 203079051648.

The previous prime is 212322134239. The next prime is 212322134327. The reversal of 212322134243 is 342431223212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 212322134243 - 2² = 212322134239 is a prime.

It is a super-3 number, since 3×212322134243³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212322134203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 157163 + ... + 670331.

It is an arithmetic number, because the mean of its divisors is an integer number (27695784900).

Almost surely, 2^212322134243 is an apocalyptic number.

212322134243 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

212322134243 is a deficient number, since it is larger than the sum of its proper divisors (9244144957).

212322134243 is a wasteful number, since it uses less digits than its factorization.

212322134243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 531181.

The product of its digits is 13824, while the sum is 29.

Adding to 212322134243 its reverse (342431223212), we get a palindrome (554753357455).

The spelling of 212322134243 in words is "two hundred twelve billion, three hundred twenty-two million, one hundred thirty-four thousand, two hundred forty-three".