212321202023 has 32 divisors (see below), whose sum is σ = 260796641280. Its totient is φ = 169006176000.

The previous prime is 212321202017. The next prime is 212321202047. The reversal of 212321202023 is 320202123212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 212321202023 - 2⁶ = 212321201959 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 212321201986 and 212321202004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212321202013) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 347108 + ... + 738326.

It is an arithmetic number, because the mean of its divisors is an integer number (8149895040).

Almost surely, 2^212321202023 is an apocalyptic number.

212321202023 is a deficient number, since it is larger than the sum of its proper divisors (48475439257).

212321202023 is a wasteful number, since it uses less digits than its factorization.

212321202023 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 391359.

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 212321202023 its reverse (320202123212), we get a palindrome (532523325235).

The spelling of 212321202023 in words is "two hundred twelve billion, three hundred twenty-one million, two hundred two thousand, twenty-three".