213220112303111 has 4 divisors (see below), whose sum is σ = 216140935759392. Its totient is φ = 210299288846832.

The previous prime is 213220112303101. The next prime is 213220112303147. The reversal of 213220112303111 is 111303211022312.

It is a happy number.

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

It is not a de Polignac number, because 213220112303111 - 2¹⁸ = 213220112040967 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213220112303101) 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, 1460411728031 + ... + 1460411728176.

It is an arithmetic number, because the mean of its divisors is an integer number (54035233939848).

Almost surely, 2^{213220112303111} is an apocalyptic number.

213220112303111 is a deficient number, since it is larger than the sum of its proper divisors (2920823456281).

213220112303111 is an equidigital number, since it uses as much as digits as its factorization.

213220112303111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2920823456280.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 213220112303111 its reverse (111303211022312), we get a palindrome (324523323325423).

The spelling of 213220112303111 in words is "two hundred thirteen trillion, two hundred twenty billion, one hundred twelve million, three hundred three thousand, one hundred eleven".