213101220323 has 4 divisors (see below), whose sum is σ = 213105876240. Its totient is φ = 213096564408.

The previous prime is 213101220287. The next prime is 213101220331. The reversal of 213101220323 is 323022101312.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 213101220323 - 2¹⁸ = 213100958179 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 213101220295 and 213101220304.

It is not an unprimeable number, because it can be changed into a prime (213101220383) 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, 2258615 + ... + 2351072.

It is an arithmetic number, because the mean of its divisors is an integer number (53276469060).

Almost surely, 2^213101220323 is an apocalyptic number.

213101220323 is a deficient number, since it is larger than the sum of its proper divisors (4655917).

213101220323 is an equidigital number, since it uses as much as digits as its factorization.

213101220323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4655916.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 213101220323 its reverse (323022101312), we get a palindrome (536123321635).

The spelling of 213101220323 in words is "two hundred thirteen billion, one hundred one million, two hundred twenty thousand, three hundred twenty-three".