212123102023 has 4 divisors (see below), whose sum is σ = 242426402320. Its totient is φ = 181819801728.

The previous prime is 212123101999. The next prime is 212123102089. The reversal of 212123102023 is 320201321212.

212123102023 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 212123102023 - 2¹⁷ = 212122970951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212123102123) 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 3 ways as a sum of consecutive naturals, for example, 15151650138 + ... + 15151650151.

It is an arithmetic number, because the mean of its divisors is an integer number (60606600580).

Almost surely, 2^212123102023 is an apocalyptic number.

212123102023 is a deficient number, since it is larger than the sum of its proper divisors (30303300297).

212123102023 is an equidigital number, since it uses as much as digits as its factorization.

212123102023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 30303300296.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 212123102023 its reverse (320201321212), we get a palindrome (532324423235).

The spelling of 212123102023 in words is "two hundred twelve billion, one hundred twenty-three million, one hundred two thousand, twenty-three".