212112313121123 has 8 divisors (see below), whose sum is σ = 214090376649600. Its totient is φ = 210134832847488.

The previous prime is 212112313121069. The next prime is 212112313121161. The reversal of 212112313121123 is 321121313211212.

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 212112313121123 - 2²⁴ = 212112296343907 is a prime.

It is a super-2 number, since 2×212112313121123² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212112313121092 and 212112313121101.

It is not an unprimeable number, because it can be changed into a prime (212112313121183) 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, 145082963 + ... + 146537676.

It is an arithmetic number, because the mean of its divisors is an integer number (26761297081200).

Almost surely, 2^{212112313121123} is an apocalyptic number.

212112313121123 is a deficient number, since it is larger than the sum of its proper divisors (1978063528477).

212112313121123 is a wasteful number, since it uses less digits than its factorization.

212112313121123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 291627421.

The product of its digits is 864, while the sum is 26.

Adding to 212112313121123 its reverse (321121313211212), we get a palindrome (533233626332335).

The spelling of 212112313121123 in words is "two hundred twelve trillion, one hundred twelve billion, three hundred thirteen million, one hundred twenty-one thousand, one hundred twenty-three".