213122231263111 has 8 divisors (see below), whose sum is σ = 213509298772080. Its totient is φ = 212735207656128.

The previous prime is 213122231262971. The next prime is 213122231263129. The reversal of 213122231263111 is 111362132221312.

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 213122231263111 - 2²⁹ = 213121694392199 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 (213122231269111) 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, 1249861 + ... + 20683486.

It is an arithmetic number, because the mean of its divisors is an integer number (26688662346510).

Almost surely, 2^{213122231263111} is an apocalyptic number.

213122231263111 is a deficient number, since it is larger than the sum of its proper divisors (387067508969).

213122231263111 is a wasteful number, since it uses less digits than its factorization.

213122231263111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21950993.

The product of its digits is 5184, while the sum is 31.

Adding to 213122231263111 its reverse (111362132221312), we get a palindrome (324484363484423).

The spelling of 213122231263111 in words is "two hundred thirteen trillion, one hundred twenty-two billion, two hundred thirty-one million, two hundred sixty-three thousand, one hundred eleven".