213112211331121 has 8 divisors (see below), whose sum is σ = 213166607546880. Its totient is φ = 213057816043488.

The previous prime is 213112211331053. The next prime is 213112211331157. The reversal of 213112211331121 is 121133112211312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-213112211331121 is a prime.

It is a super-3 number, since 3×213112211331121³ (a number of 44 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213112211331191) 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, 854762340 + ... + 855011626.

It is an arithmetic number, because the mean of its divisors is an integer number (26645825943360).

Almost surely, 2^{213112211331121} is an apocalyptic number.

It is an amenable number.

213112211331121 is a deficient number, since it is larger than the sum of its proper divisors (54396215759).

213112211331121 is a wasteful number, since it uses less digits than its factorization.

213112211331121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 464063.

The product of its digits is 432, while the sum is 25.

Adding to 213112211331121 its reverse (121133112211312), we get a palindrome (334245323542433).

The spelling of 213112211331121 in words is "two hundred thirteen trillion, one hundred twelve billion, two hundred eleven million, three hundred thirty-one thousand, one hundred twenty-one".