212301112321 has 4 divisors (see below), whose sum is σ = 216818157312. Its totient is φ = 207784067332.

The previous prime is 212301112313. The next prime is 212301112333. The reversal of 212301112321 is 123211103212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 212301112321 - 2³ = 212301112313 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212301112301) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2258522425 + ... + 2258522518.

It is an arithmetic number, because the mean of its divisors is an integer number (54204539328).

Almost surely, 2^212301112321 is an apocalyptic number.

It is an amenable number.

212301112321 is a deficient number, since it is larger than the sum of its proper divisors (4517044991).

212301112321 is an equidigital number, since it uses as much as digits as its factorization.

212301112321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4517044990.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 212301112321 its reverse (123211103212), we get a palindrome (335512215533).

The spelling of 212301112321 in words is "two hundred twelve billion, three hundred one million, one hundred twelve thousand, three hundred twenty-one".