213122414230321 has 4 divisors (see below), whose sum is σ = 213223372268544. Its totient is φ = 213021456192100.

The previous prime is 213122414230267. The next prime is 213122414230333. The reversal of 213122414230321 is 123032414221312.

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 a de Polignac number, because none of the positive numbers 2^k-213122414230321 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213122414230381) 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, 50479015945 + ... + 50479020166.

It is an arithmetic number, because the mean of its divisors is an integer number (53305843067136).

Almost surely, 2^{213122414230321} is an apocalyptic number.

It is an amenable number.

213122414230321 is a deficient number, since it is larger than the sum of its proper divisors (100958038223).

213122414230321 is a wasteful number, since it uses less digits than its factorization.

213122414230321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 100958038222.

The product of its (nonzero) digits is 13824, while the sum is 31.

Adding to 213122414230321 its reverse (123032414221312), we get a palindrome (336154828451633).

Subtracting from 213122414230321 its reverse (123032414221312), we obtain a palindrome (90090000009009).

The spelling of 213122414230321 in words is "two hundred thirteen trillion, one hundred twenty-two billion, four hundred fourteen million, two hundred thirty thousand, three hundred twenty-one".