212320200023 has 4 divisors (see below), whose sum is σ = 212430041688. Its totient is φ = 212210358360.

The previous prime is 212320200013. The next prime is 212320200031. The reversal of 212320200023 is 320002023212.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-212320200023 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 212320199974 and 212320200010.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (212320200013) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 54917933 + ... + 54921798.

It is an arithmetic number, because the mean of its divisors is an integer number (53107510422).

Almost surely, 2^212320200023 is an apocalyptic number.

212320200023 is a deficient number, since it is larger than the sum of its proper divisors (109841665).

212320200023 is a wasteful number, since it uses less digits than its factorization.

212320200023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109841664.

The product of its (nonzero) digits is 288, while the sum is 17.

Adding to 212320200023 its reverse (320002023212), we get a palindrome (532322223235).

The spelling of 212320200023 in words is "two hundred twelve billion, three hundred twenty million, two hundred thousand, twenty-three".