213120223111 has 8 divisors (see below), whose sum is σ = 224137396224. Its totient is φ = 202248973080.

The previous prime is 213120223033. The next prime is 213120223133. The reversal of 213120223111 is 111322021312.

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 213120223111 - 2¹³ = 213120214919 is a prime.

It is a super-3 number, since 3×213120223111³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213120223181) 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, 36477775 + ... + 36483616.

It is an arithmetic number, because the mean of its divisors is an integer number (28017174528).

Almost surely, 2^213120223111 is an apocalyptic number.

213120223111 is a deficient number, since it is larger than the sum of its proper divisors (11017173113).

213120223111 is a wasteful number, since it uses less digits than its factorization.

213120223111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 72961541.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 213120223111 its reverse (111322021312), we get a palindrome (324442244423).

The spelling of 213120223111 in words is "two hundred thirteen billion, one hundred twenty million, two hundred twenty-three thousand, one hundred eleven".