213230120111123 has 8 divisors (see below), whose sum is σ = 215358646800000. Its totient is φ = 211104725914368.

The previous prime is 213230120111111. The next prime is 213230120111171. The reversal of 213230120111123 is 321111021032312.

It is a happy number.

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 213230120111123 - 2¹⁸ = 213230119848979 is a prime.

It is a super-3 number, since 3×213230120111123³ (a number of 44 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213230120111623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 782986211 + ... + 783258492.

It is an arithmetic number, because the mean of its divisors is an integer number (26919830850000).

Almost surely, 2^{213230120111123} is an apocalyptic number.

213230120111123 is a deficient number, since it is larger than the sum of its proper divisors (2128526688877).

213230120111123 is a wasteful number, since it uses less digits than its factorization.

213230120111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1566246061.

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

Adding to 213230120111123 its reverse (321111021032312), we get a palindrome (534341141143435).

The spelling of 213230120111123 in words is "two hundred thirteen trillion, two hundred thirty billion, one hundred twenty million, one hundred eleven thousand, one hundred twenty-three".