212144234123 has 8 divisors (see below), whose sum is σ = 216692159040. Its totient is φ = 207597735040.

The previous prime is 212144234117. The next prime is 212144234179. The reversal of 212144234123 is 321432441212.

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-212144234123 is a prime.

It is a super-3 number, since 3×212144234123³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (212144234623) 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, 52958 + ... + 653523.

It is an arithmetic number, because the mean of its divisors is an integer number (27086519880).

Almost surely, 2^212144234123 is an apocalyptic number.

212144234123 is a deficient number, since it is larger than the sum of its proper divisors (4547924917).

212144234123 is an equidigital number, since it uses as much as digits as its factorization.

212144234123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 712917.

The product of its digits is 9216, while the sum is 29.

Adding to 212144234123 its reverse (321432441212), we get a palindrome (533576675335).

The spelling of 212144234123 in words is "two hundred twelve billion, one hundred forty-four million, two hundred thirty-four thousand, one hundred twenty-three".