212023312123 has 8 divisors (see below), whose sum is σ = 242370652160. Its totient is φ = 181690545960.

The previous prime is 212023312121. The next prime is 212023312153. The reversal of 212023312123 is 321213320212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 212023312123 - 2¹ = 212023312121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212023312094 and 212023312103.

It is not an unprimeable number, because it can be changed into a prime (212023312121) 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, 3612273 + ... + 3670498.

It is an arithmetic number, because the mean of its divisors is an integer number (30296331520).

Almost surely, 2^212023312123 is an apocalyptic number.

212023312123 is a deficient number, since it is larger than the sum of its proper divisors (30347340037).

212023312123 is an equidigital number, since it uses as much as digits as its factorization.

212023312123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7286937.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 212023312123 its reverse (321213320212), we get a palindrome (533236632335).

The spelling of 212023312123 in words is "two hundred twelve billion, twenty-three million, three hundred twelve thousand, one hundred twenty-three".