213033031121 has 8 divisors (see below), whose sum is σ = 213740380224. Its totient is φ = 212326637040.

The previous prime is 213033031111. The next prime is 213033031129. The reversal of 213033031121 is 121130330312.

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-213033031121 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 213033031093 and 213033031102.

It is not an unprimeable number, because it can be changed into a prime (213033031129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 209510 + ... + 685536.

It is an arithmetic number, because the mean of its divisors is an integer number (26717547528).

Almost surely, 2^213033031121 is an apocalyptic number.

It is an amenable number.

213033031121 is a deficient number, since it is larger than the sum of its proper divisors (707349103).

213033031121 is a wasteful number, since it uses less digits than its factorization.

213033031121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 477511.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 213033031121 its reverse (121130330312), we get a palindrome (334163361433).

The spelling of 213033031121 in words is "two hundred thirteen billion, thirty-three million, thirty-one thousand, one hundred twenty-one".